{"title":"Down sleeping bag","description":"\u003cp\u003e\n  Natural down insulation is common to all models in this selection, but usage, temperature ranges, and weight profiles vary considerably from one model to another. Understanding the technical criteria helps avoid the most common selection errors.\n\u003c\/p\u003e\n\n\u003ch2\u003eFill power: the key indicator of down sleeping bag quality\u003c\/h2\u003e\n\n\u003cp\u003e\n  The quality of a \u003cb\u003edown sleeping bag\u003c\/b\u003e is measured primarily in fill power (loft, expressed in cubic inches per ounce). The higher the fill power, the lighter and more insulating the insulation is for an equivalent thickness. A compact 800-fill-power \u003cb\u003edown sleeping bag\u003c\/b\u003e compresses into half the volume of a synthetic one with the same insulation, for a significantly lower weight. In practice, 650-fill-power insulation is suitable for \u003cb\u003ecamping with down bags\u003c\/b\u003e and occasional outings where weight is less of a constraint. 700 to 800-fill-power insulation is the standard for \u003cb\u003etrekking with down bags\u003c\/b\u003e and regular mountain trips. 850-fill-power insulation and above is reserved for high-performance, \u003cb\u003eultralight down\u003c\/b\u003e, or \u003cb\u003eextreme cold down\u003c\/b\u003e models requiring a maximum warmth-to-weight ratio. A high-density \u003cb\u003ewarm down sleeping bag\u003c\/b\u003e makes it possible to reach sub-zero comfort temperatures at a weight of less than 900g, a performance level unattainable at that weight with synthetic insulation.\n\u003c\/p\u003e\n\n\u003ch3\u003eGoose down or duck down: what is the real difference?\u003c\/h3\u003e\n\n\u003cp\u003e\n  Goose down generally offers a slightly higher fill power for the same weight, giving it a marginal advantage for very high-end \u003cb\u003eultralight down\u003c\/b\u003e models. In practice, an 800-fill-power 0-degree duck \u003cb\u003edown sleeping bag\u003c\/b\u003e and an 800-fill-power goose model are very similar in their field performance. The difference becomes apparent primarily above 850 fill power, where goose down retains a measurable advantage. For most uses, the choice between the two is based more on value for money than on significant performance gaps.\n\u003c\/p\u003e\n\n\u003ch2\u003eNatural down and humidity: the main point of caution\u003c\/h2\u003e\n\n\u003cp\u003e\n  The main drawback of a \u003cb\u003edown sleeping bag\u003c\/b\u003e is its sensitivity to moisture: saturated insulation loses much of its insulating power. Hydrophobic treatments applied to the feathers (DWR) reduce this risk for outings in mixed conditions and bivouacs with nocturnal condensation. For a \u003cb\u003ewinter down sleeping bag\u003c\/b\u003e used for bivouacking at high altitude in dry conditions, this constraint is rarely decisive. For very wet outings or multi-day expeditions with no possibility of drying, a synthetic bag or a model with enhanced hydrophobic treatment is more reliable. Thorough drying after each use and storing the bag uncompressed between trips directly determine the lifespan of the insulation. For users who prefer insulation without moisture constraints, the \u003ca href=\"\/en\/collections\/sac-de-couchage-coton\"\u003ecotton sleeping bag collection\u003c\/a\u003e offers alternatives with natural plant-based insulation suitable for family camping.\n\u003c\/p\u003e\n\n\u003ch2\u003eChoosing your down sleeping bag according to use\u003c\/h2\u003e\n\n\u003cp\u003e\n  For \u003cb\u003etrekking with down bags\u003c\/b\u003e and long-distance backpacking, \u003ca href=\"\/en\/collections\/sac-de-couchage-0-degre\"\u003e0-degree down\u003c\/a\u003e models with 800-fill-power insulation represent the best entry point: versatile temperature range, contained weight, and compressed volume suitable for a 35 to 45-liter pack. For late-season bivouacs and outings at altitudes above 2,000 m starting in September, a model with a -5°C comfort rating provides the necessary margin without overloading the pack. For winter outings and mountaineering in the Alps or Pyrenees, the \u003ca href=\"\/en\/collections\/sac-de-couchage-grand-froid\"\u003eextreme cold down sleeping bag collection\u003c\/a\u003e includes models with comfort ratings from -17°C to -30°C using 800 to 850-fill-power insulation. For \u003cb\u003ecamping with down bags\u003c\/b\u003e where the gear is transported by car or used with little elevation gain, weight becomes secondary and other criteria such as interior width or ease of maintenance may take precedence.\n\u003c\/p\u003e","products":[{"product_id":"sac-de-couchage-0-degre-aegismax-g2","title":"0 degree sleeping bag (-2°) | Aegismax G2","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,052 g (Regular) \/ 1,124 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e -2 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -8 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800-fill-power white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 15D iFlex® nylon with DWR water-repellent finish\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e Up to 3.3 L\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e EN 13537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eHigh-performance down sleeping bag for mid-mountain use\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax G2\u003c\/strong\u003e fits perfectly between summer gear and heavy expedition equipment. With a certified sub-zero comfort temperature, this \u003cb\u003ewarm sleeping bag\u003c\/b\u003e ensures restful nights in early spring or late autumn. Its premium fill guarantees rapid warming of the interior from the very first minutes of rest, which is crucial after a long day of hiking in cool conditions.\u003c\/p\u003e\n\u003ch3\u003eTechnical baffling and ultra-compressibility\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e800-fill-power RDS-certified goose down\u003c\/b\u003e offers one of the best insulation-to-weight ratios on the market. It compresses impressively (taking up only 3.3 liters) to free up valuable space in your backpack. The internal baffle construction eliminates cold spots, while the thin \u003cb\u003eiFlex® 15D\u003c\/b\u003e fabric allows the sleeping bag to loft immediately once unpacked in the tent.\u003c\/p\u003e\n\u003cp\u003eIf you are planning to transition to purely winter conditions and now require heavy-duty insulation certified down to -17°C, the \u003ca href=\"\/en\/products\/sac-de-couchage-grand-froid-aegismax-d5\" title=\"Discover the Aegismax D5 cold weather\"\u003eAegismax D5\u003c\/a\u003e extreme cold sleeping bag will become essential for keeping you safe during nights in the snow.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"G2 \/ Regular (up to 176cm)","offer_id":52581200265553,"sku":"14:1063#G2-blue-Regular.;200007763:201336100","price":339.0,"currency_code":"EUR","in_stock":true},{"title":"G2 \/ Long (up to 196cm)","offer_id":52581200331089,"sku":"14:193#G2-blue-Lengthen.;200007763:201336100","price":349.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_G2_02.webp?v=1774707373"},{"product_id":"sac-de-couchage-moins-10-degre-aegismax-g3","title":"Sleeping bag -10 (-8°C) | Aegismax G3","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,350 g (Regular) \/ 1,434 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e -8°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -15°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800-fill power white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 15D IFlex® Nylon with DWR water-repellent finish\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e 4.5 L\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e EN 13537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eHigh-level thermal protection for winter\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax G3 -10 degree sleeping bag\u003c\/strong\u003e is essential safety gear for demanding winter nights. When cold sets in for the long haul, the quality of your insulation determines the success of your excursion. This \u003cb\u003eextreme cold sleeping bag\u003c\/b\u003e utilizes premium goose down to build an impenetrable barrier between your metabolic heat and the freezing outside air, ensuring rapid warming of the interior.\u003c\/p\u003e\n\u003ch3\u003eHeat retention and technical shell\u003c\/h3\u003e\n\u003cp\u003eThe internal box-baffle architecture ensures perfect distribution of the \u003cb\u003e800-fill power RDS-certified down\u003c\/b\u003e, eliminating cold spots. The \u003cb\u003e15D IFlex® nylon\u003c\/b\u003e shell is highly water-repellent, protecting the down from condensation on tent walls. Despite its high-performance thermal ratings, it compresses to 4.5 liters, fitting easily into a mountaineering pack.\u003c\/p\u003e\n\n\u003cp\u003eFor larger frames or users looking for a technical design incorporating cross-baffles to further stabilize the down down to -10°C, the expedition model \u003ca href=\"\/en\/products\/sac-de-couchage-aegismax-ultra-future-ii\" title=\"Discover the Aegismax Ultra Future II\"\u003eAegismax Ultra Future II\u003c\/a\u003e will be the ultimate evolution of your gear.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"G3 \/ Regular (up to 176cm)","offer_id":52581203083601,"sku":"14:365016#G3-blue-Regular.;200007763:201336100","price":439.0,"currency_code":"EUR","in_stock":true},{"title":"G3 \/ Long (up to 196cm)","offer_id":52581203149137,"sku":"14:200005536#G3-blue-Lengthen.;200007763:201336100","price":459.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_G3_01.webp?v=1774707703"},{"product_id":"sac-de-couchage-0-degre-aegismax-m3","title":"0-degree sleeping bag | Aegismax M3","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 888 g (Regular) \/ 966 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e 0 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -5 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eStandard:\u003c\/b\u003e ISO 23537\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800-fill-power white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e iFlex® 15D ripstop nylon with DWR water-repellent finish\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e 18 × 25 cm\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003ePerformance-oriented 3-season lightweight sleeping bag\u003c\/h2\u003e\n\u003cp\u003eThe Aegismax M3 is aimed at demanding users looking for a \u003cstrong\u003e0-degree trekking sleeping bag\u003c\/strong\u003e under the one-kilogram mark. The certified comfort temperature ensures a restful sleep in spring or autumn, provided this bag is paired with an appropriate insulating sleeping pad to block heat loss through the ground. Its design limits body heat loss even when ambient humidity rises under your shelter.\u003c\/p\u003e\n\u003ch3\u003eBaffling and certified insulation\u003c\/h3\u003e\n\u003cp\u003eInternal baffles stabilize the 800-fill-power RDS-certified goose down, preventing the creation of cold spots at the shoulders and hips. The ISO 23537 standard ensures a transparent reading of the equipment's capabilities. The 15D nylon offers a strict balance between mechanical strength and minimal weight, ideal for optimizing space in a 40- to 50-liter backpack.\u003c\/p\u003e\n\u003cp\u003eConversely, if your budget is tighter and you are willing to accept a very slight weight increase by switching to duck down fill while still maintaining your 0°C nights, the \u003ca href=\"\/en\/products\/sac-de-couchage-0-degre-aegismax-d2\" title=\"View the Aegismax D2 duck down sleeping bag\"\u003eAegismax D2\u003c\/a\u003e model will prove to be a very relevant technical and financial choice.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"M3 \/ Regular (under 175cm)","offer_id":52581225922897,"sku":"14:29#M3-Regular;200007763:201336100","price":299.0,"currency_code":"EUR","in_stock":true},{"title":"M3 \/ Tall (over 175cm)","offer_id":52581225955665,"sku":"14:366#M3-Lengthen;200007763:201336100","price":309.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_aegismax_d3.webp?v=1767302132"},{"product_id":"sac-de-couchage-10-degre-aegismax-air","title":"10-degree (11°C) sleeping bag | Aegismax Air","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 438 g (Regular) \/ 480 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e +11 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e +6 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800-fill power white duck down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e DWR water-repellent 10D IFlex® ripstop nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e Ultra-compact (down to 1 L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e ISO 23537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eMinimalist sleeping bag for summer trekking\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Air\u003c\/strong\u003e is aimed directly at enthusiasts of ultralight hiking and cycle touring. When you carry your gear for several days in the sun, every gram counts. This \u003cb\u003eultralight sleeping bag\u003c\/b\u003e provides a simple solution: eliminating the superfluous to keep only high-performance auxiliary insulation, perfectly suited for mild summer nights.\u003c\/p\u003e\n\u003ch3\u003eExtreme compactness and natural down\u003c\/h3\u003e\n\u003cp\u003eWith a weight under 500 grams and a \u003cb\u003ecompressed volume of one liter\u003c\/b\u003e, it takes up less space than a water bottle in your backpack. The snug mummy cut allows the interior to warm up very quickly. The use of \u003cb\u003e800-fill power RDS-certified down\u003c\/b\u003e ensures gentle warmth in the early morning, while the \u003cb\u003e10D ripstop fabric\u003c\/b\u003e protects against light dew if you choose to sleep under the stars.\u003c\/p\u003e\n\u003cp\u003eIf you wish to maintain this formidable summer compactness but prefer the insulation and durability of premium goose down fill, the \u003ca href=\"\/en\/products\/sac-de-couchage-10-degres-aegismax-air-e\" title=\"Discover the Aegismax Air-E with goose down\"\u003eAegismax Air-E\u003c\/a\u003e version will meet your expectations exactly.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Long (up to 190cm)","offer_id":52581254168913,"sku":"14:366#Lengthen","price":189.0,"currency_code":"EUR","in_stock":true},{"title":"Regular (up to 175cm)","offer_id":52581254201681,"sku":"14:29#Regular","price":179.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_aegismax.webp?v=1767301373"},{"product_id":"sac-de-couchage-0-degre-aegismax-d2","title":"0-degree sleeping bag | Aegismax D2","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,006 g (Regular) \/ 1,078 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eDimensions:\u003c\/b\u003e 196 × 78 cm (Regular) \/ 216 × 82 cm (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e 0 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -5 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThermal standard\u003c\/strong\u003e: EN 13537\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFilling:\u003c\/b\u003e 650 cuin duck down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e DWR water-repellent iFlex® 15D nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e 18 × 30 cm\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003eFor those looking for slightly higher insulation with a 700 cuin fill power at a similar weight of around one kilo, the \u003ca href=\"\/en\/products\/sac-de-couchage-0-degre-flames-creed-20d\" title=\"Discover the Flame's Creed 20D\"\u003eFlame's Creed 20D\u003c\/a\u003e sleeping bag positions itself as a very serious direct competitor.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Up to 190cm","offer_id":52581262721361,"sku":"14:175#D2 L Blue","price":309.0,"currency_code":"EUR","in_stock":true},{"title":"Up to 178cm","offer_id":52581262950737,"sku":"14:496#D2 M Blue","price":299.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_D2_02.webp?v=1774706971"},{"product_id":"sac-de-couchage-0-degre-widesea-ds13","title":"5-degree sleeping bag | Widesea DS13","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 720 g (M) \/ 775 g (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e 5 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e 0 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800 FP white duck down\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 15D 400T water-repellent nylon\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003e3-season sleeping bag focused on compactness and lightness\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eWidesea DS13 5-degree sleeping bag\u003c\/strong\u003e is aimed at hikers who refuse to be weighed down but who need reliable thermal insulation for mid-season nights. With a weight of around 700 grams, it helps keep your backpack agile and balanced. Its contoured cut reduces empty space inside the bag, which speeds up the temperature rise generated by your body heat from the first few minutes of rest.\u003c\/p\u003e\n\u003ch3\u003eInsulation\/weight ratio and water-repellent protection\u003c\/h3\u003e\n\u003cp\u003eThe use of natural \u003cb\u003e800 FP (Fill Power) down\u003c\/b\u003e filling ensures excellent loft while offering incredible compressibility when it's time to pack up camp in the morning. The \u003cb\u003e15D nylon\u003c\/b\u003e outer shell is treated to resist nightly condensation. It is a \u003cb\u003elightweight sleeping bag\u003c\/b\u003e that provides peace of mind for regular trekking. If you are instead planning nights of static camping where weight is not an issue and you prefer a moisture-tolerant synthetic filling, the \u003ca href=\"\/en\/products\/sac-de-couchage-5-degres-naturehike-mj300\" title=\"Discover the Naturehike MJ300 synthetic sleeping bag\"\u003eNaturehike MJ300\u003c\/a\u003e will be a perfectly suitable alternative.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"DS13 \/ L","offer_id":52581285986641,"sku":"14:496#Contains 350g Fill;200007763:201336100","price":259.0,"currency_code":"EUR","in_stock":true},{"title":"DS13 \/ M","offer_id":52581286019409,"sku":"14:193#Contains 300g Fill;200007763:201336100","price":249.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_widesea.webp?v=1767132444"},{"product_id":"sac-de-couchage-grand-froid-moins-30-aegismax-ultra","title":"Extreme cold -30°C mountaineering sleeping bag | Aegismax Ultra","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eUsage:\u003c\/b\u003e Mountaineering, winter expeditions, extreme cold\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,534 g (Regular) \/ 1,644 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e -30°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -38°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 950 cuin white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e DWR water-repellent 10D IFlex® nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standards:\u003c\/b\u003e ISO 23537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eAbsolute insulation for high-altitude mountaineering\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Ultra\u003c\/strong\u003e is a thermal protection tool reserved for demanding expeditions. In temperatures as low as -30°C, \u003cb\u003emaintaining metabolic functions\u003c\/b\u003e during sleep is the top priority. This \u003cb\u003eexpedition sleeping bag\u003c\/b\u003e requires rigorous management of your bivouac environment (ground insulation and dry clothing) so that the exceptional quality of its fill can reach its full potential for heat retention.\u003c\/p\u003e\n\u003ch3\u003e3D architecture and maximum heat retention\u003c\/h3\u003e\n\u003cp\u003eThis model features \u003cb\u003ethree-dimensional sidewalls\u003c\/b\u003e and continuous wraparound baffles, a design that maximizes the expansion of the \u003cb\u003e950 cuin RDS-certified goose down\u003c\/b\u003e while eliminating dead compression zones. The adjustable thermal collar literally seals the interior. The use of an \u003cb\u003eultra-thin yet extremely durable 10D nylon\u003c\/b\u003e allows for optimal breathability, helping to limit moisture buildup before it freezes inside the fill.\u003c\/p\u003e\n\u003cp\u003eOn the opposite end of this extreme spectrum, if the winter season is over and you are looking for a minimalist down bag under 450 grams for purely summer nights (around 11°C), the ultra-compact \u003ca href=\"\/en\/products\/sac-de-couchage-10-degre-aegismax-air\" title=\"See the Aegismax Air summer bag\"\u003eAegismax Air\u003c\/a\u003e will radically lighten your carry.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"ULTRA \/ Long","offer_id":52581814763857,"sku":"14:175#Ultra-White-Lengthen;200007763:201336100","price":1139.0,"currency_code":"EUR","in_stock":true},{"title":"ULTRA \/ Regular","offer_id":52581814829393,"sku":"14:496#Ultra-White-Rgular;200007763:201336100","price":999.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_grand_froid_aegismax_ultra.webp?v=1767131851"},{"product_id":"sac-de-couchage-0-degre-flames-creed-20d","title":"0-degree sleeping bag | FLAME'S CREED 20D","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,050 g (M) \/ 1,130 g (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eDimensions:\u003c\/b\u003e 205 × 81 cm (M) \/ 210 × 83 cm (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e 0°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -10°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 700 cuin duck down\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 20D Nylon\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eRobust thermal protection for demanding treks\u003c\/h2\u003e\n\u003cp\u003eThe Flame's Creed 20D is structured to face real-world terrain conditions without extra fragility. This \u003cstrong\u003e0-degree sleeping bag\u003c\/strong\u003e prioritizes mechanical resistance and thermal reliability. The limit of -10°C indicates an extreme safety threshold, with the comfort temperature of 0°C remaining the reference value for use. The performance of this fill will depend directly on your ground insulation and the absence of drafts in the tent.\u003c\/p\u003e\n\u003ch3\u003eAbrasion resistance and thermal consistency\u003c\/h3\u003e\n\u003cp\u003eThe 20D nylon outer fabric handles friction against rocky ground or surrounding equipment better than ultra-light models, reducing the risk of tearing. The 700 cuin duck down offers an insulation-to-volume ratio that is highly relevant for regular use. The smooth zippers and internal draft collar block cold air entry with great technical precision.\u003c\/p\u003e\n\u003cp\u003eIf you prefer spending your nights static camping or in a van where weight is not an issue, and you prefer the moisture tolerance of a synthetic fill in a rectangular format, the \u003ca href=\"\/en\/products\/sac-de-couchage-0-degre-naturehike-u250s-2\" title=\"Discover the Naturehike U250S synthetic sleeping bag\"\u003eNaturehike U250S\u003c\/a\u003e will be the ideal piece of equipment for maximum spatial and thermal comfort.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"L","offer_id":52581835473233,"sku":"14:366#L Green","price":199.0,"currency_code":"EUR","in_stock":true},{"title":"M","offer_id":52581835506001,"sku":"14:29#M Green","price":199.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_flame_s_creed_20d.webp?v=1767131554"},{"product_id":"sac-de-couchage-moins-10-naturehike-sp1000","title":"Sleeping bag -10 degrees (-10.8°C) | Naturehike SP1000","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,650 g (M) \/ 1,720 g (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e -10.8°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -18.6°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e GB\/T 38426-2019\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFilling:\u003c\/b\u003e 650 cuin duck down\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e Water-repellent 20D nylon\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eThe thermal shield for long winter nights\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNaturehike SP1000 extreme cold sleeping bag\u003c\/strong\u003e is designed for hikers facing environments where frost is a constant. Safety during winter bivouacking requires the ability to fully recover. This model relies on a robust structure and a generous amount of filling to stop heat loss in its tracks, creating a protective cocoon that is immediately noticeable as soon as you zip it up.\u003c\/p\u003e\n\u003ch3\u003eAirflow locking and ergonomic footbox\u003c\/h3\u003e\n\u003cp\u003eThe effectiveness of this \u003cb\u003ewinter sleeping bag\u003c\/b\u003e relies on its insulation details: wide draft tubes run along the main zipper, and a massive thermal collar prevents warm air from escaping from the upper chest. The \u003cb\u003e650 cuin duck down\u003c\/b\u003e ensures even heating. The \u003cb\u003e3D footbox\u003c\/b\u003e provides the necessary space for your feet without compressing the down. The outer \u003cb\u003e20D nylon\u003c\/b\u003e stands up without flinching to the harsh life inside a tent in cold weather.\u003c\/p\u003e\n\u003cp\u003eHowever, if the winter season is coming to an end and you are looking instead to equip yourself for mild to cool spring and summer nights with an ultra-minimalist carrying philosophy, the profile of the \u003ca title=\"See the 3-season Aegismax Mini model\" href=\"\/en\/products\/sac-de-couchage-10-degre-aegismax-mini\"\u003eAegismax Mini\u003c\/a\u003e will be the ideal starting point to lighten your pack.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"L","offer_id":52587868520785,"sku":"14:200006153#SP1000 L Brown","price":359.0,"currency_code":"EUR","in_stock":true},{"title":"M","offer_id":52587868651857,"sku":"14:193#SP1000 M Brown","price":359.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_-10_degr_s_naturehike.webp?v=1767131134"},{"product_id":"sac-de-couchage-10-degres-naturehike-cw280","title":"10-degree (11°C) sleeping bag | Naturehike CW280","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 550 g\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e 10.9 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e 6.8 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e ISO 23537\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800 cuin white duck down (280 g)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 20D Nylon (soft to the touch)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompactness:\u003c\/b\u003e Very low volume\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eLightweight and versatile sleeping gear for the summer season\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNaturehike CW280\u003c\/strong\u003e is designed to make life easier for summer hikers. Forget bulky, cumbersome sleeping bags: this model is completely unnoticeable while hiking and provides very pleasant warmth for nights in the plains or at mid-altitude during the summer. It is an \u003cb\u003eultra-lightweight sleeping bag\u003c\/b\u003e designed for ease of use, ideal for those starting out with bivouacking or looking to lighten their current gear.\u003c\/p\u003e\n\u003ch3\u003eBreathable fabric and thermal versatility\u003c\/h3\u003e\n\u003cp\u003eThe major advantage of this bag lies in its \u003cb\u003etwo-way zipper\u003c\/b\u003e. If it gets too hot, you can open the bottom to air out your feet, or open it completely to use it as a simple \u003cb\u003ecamping blanket\u003c\/b\u003e. The \u003cb\u003e20D nylon fabric\u003c\/b\u003e was selected for its high breathability and soft feel against the skin, offering optimal \u003cb\u003esleeping comfort\u003c\/b\u003e after a day of effort, without the \"plastic\" feel of entry-level models.\u003c\/p\u003e\n\u003cp\u003eIf you wish to extend your bivouac season into cooler nights (around 5°C) and prefer a contoured fit to better retain body heat rather than a blanket shape, the \u003ca title=\"Discover the Widesea DS13 sleeping bag\" href=\"\/en\/products\/sac-de-couchage-0-degre-widesea-ds13\"\u003eWidesea DS13\u003c\/a\u003e sleeping bag would be the ideal next step for just a few extra grams.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Blue","offer_id":52587881693521,"sku":"14:366#CW280 650 Duck down","price":139.0,"currency_code":"EUR","in_stock":true},{"title":"White","offer_id":52587881759057,"sku":"14:29#CW280 650 Duck down","price":139.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_duvet_10_degr_s_naturehike_cw280_2.webp?v=1767130791"},{"product_id":"sac-de-couchage-trekking-naturehike-sp400","title":"5-degree (3.8°C) sleeping bag | Naturehike SP400","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 820 g (M) \/ 856 g (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e 3.8 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -1.4 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFilling:\u003c\/b\u003e 650 cuin duck down (400 g) RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 20D water-repellent nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eSize:\u003c\/b\u003e 190 cm (M) \/ 205 cm (L)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eLightweight sleeping gear for hiking and mid-mountain treks\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNaturehike SP400 5-degree sleeping bag\u003c\/strong\u003e is structured for hikers seeking the perfect balance between reassuring warmth and lightweight design. By incorporating 400 grams of natural filling while staying under the one-kilo mark, this model ensures a restful sleep during spring and autumn bivouacs, where strictly summer equipment would reach its limits in the early morning.\u003c\/p\u003e\n\u003ch3\u003eSecure thermal design and certified down\u003c\/h3\u003e\n\u003cp\u003eThe inclusion of a \u003cb\u003ewindproof thermal collar\u003c\/b\u003e and a 3D footbox (expanded space for the feet) demonstrates a serious design aimed at blocking cold air infiltration. The filling uses \u003cb\u003e650 cuin RDS-certified down\u003c\/b\u003e, ensuring traceability and lasting thermal resilience. This \u003cb\u003ehiking sleeping bag\u003c\/b\u003e is a versatile ally. However, for trekkers on purely summer routes where every gram counts, an ultra-compact option without a hood, such as the \u003ca href=\"\/en\/products\/sac-de-couchage-trekking-10-degres-aegismax-nano\" title=\"Discover the ultra-compact Aegismax Nano\"\u003eAegismax Nano\u003c\/a\u003e, will allow for even greater savings in carry volume.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"M","offer_id":52587898536273,"sku":"14:366#SP400 M Brown","price":189.0,"currency_code":"EUR","in_stock":true},{"title":"L","offer_id":52587898667345,"sku":"14:200002984#SP400 L Brown","price":189.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_5_degr_s_naturehike_sp400.webp?v=1767129832"},{"product_id":"sac-de-couchage-0-degre-naturehike-cw700","title":"0-degree sleeping bag (-1.7°C) | Naturehike CW700","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,070 g (M) \/ 1,310 g (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e -1.7 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -7.9 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 650 cuin duck down (700 g) RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e Water-repellent 20D 400T ripstop nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e 22x42cm\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eHybrid and reassuring high-altitude sleeping\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNaturehike CW700 0-degree sleeping bag\u003c\/strong\u003e solves the classic problem of feeling constricted at night. It combines a form-fitting profile on the upper body to block heat loss with a widened lower section. This geometry allows trekkers to maintain excellent leg mobility while benefiting from serious insulation when temperatures drop below freezing in the mountains.\u003c\/p\u003e\n\u003ch3\u003eFill power and fabric durability\u003c\/h3\u003e\n\u003cp\u003eThe 700-gram \u003cb\u003eRDS certified down\u003c\/b\u003e fill provides a generous and consistent loft, creating a thick layer of insulating air around the sleeper. The \u003cb\u003e20D ripstop nylon\u003c\/b\u003e shell effectively resists abrasion and incorporates a water-repellent finish that protects the feathers from moisture. This model is the ally for demanding nights where warmth and \u003cb\u003esleep comfort\u003c\/b\u003e should not be a compromise.\u003c\/p\u003e\n\u003cp\u003eFor the most demanding users who wish to maintain this -2°C thermal limit while switching to a higher feather quality (800 cuin goose down) to optimize compressibility, the \u003ca href=\"\/en\/products\/sac-de-couchage-0-degre-aegismax-g2\" title=\"Discover the Aegismax G2 goose down sleeping bag\"\u003eAegismax G2\u003c\/a\u003e will be the logical investment.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"L","offer_id":52587967578449,"sku":"14:173#Duck down L Gray","price":259.0,"currency_code":"EUR","in_stock":true},{"title":"M","offer_id":52587967643985,"sku":"14:200006151#Duck down M Gray","price":249.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_0_degr_confort_naturehike_cw700.webp?v=1767119705"},{"product_id":"sac-de-couchage-10-degres-aegismax-air-e","title":"10 Degree Sleeping Bag (11°C) | Aegismax Air-E","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 508 g \/ 584 g (depending on version)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eDimensions:\u003c\/b\u003e 200 × 80 cm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e +11 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e +6 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e ISO 13537\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800 cuin white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFabric:\u003c\/b\u003e Lightweight nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eShape:\u003c\/b\u003e Envelope (rectangular)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eFreedom of movement for summer nights\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Air-E\u003c\/strong\u003e is the perfect solution for those who like to camp light but hate feeling confined in a mummy bag. This \u003cb\u003eenvelope sleeping bag\u003c\/b\u003e provides plenty of room from the shoulders down to the feet. Filled with \u003cb\u003e800 cuin RDS-certified goose down\u003c\/b\u003e, it is ideal for relaxed summer bivouacs, nights in mountain huts, or touring trips where nighttime comfort means above all the \u003cb\u003efreedom to change positions\u003c\/b\u003e.\u003c\/p\u003e\n\u003ch3\u003eVersatile use and extra insulation\u003c\/h3\u003e\n\u003cp\u003eThanks to its rectangular cut, this model manages temperature fluctuations very well: it can be opened wide if the night is warm, or used as an \u003cb\u003eextra quilt\u003c\/b\u003e. The \u003cb\u003eindependent down baffles\u003c\/b\u003e keep the goose down securely in place to prevent cold spots. It is a \u003cb\u003ecompact piece of equipment\u003c\/b\u003e that is easy to live with, simplifying the organization of your nature trips.\u003c\/p\u003e\n\u003cp\u003eTo wrap up our summer equipment, if you are looking for a model offering fabric that is particularly soft to the touch and total modularity by transforming into a blanket, the \u003ca href=\"\/en\/products\/sac-de-couchage-10-degres-naturehike-cw280\" title=\"See the Naturehike CW280\"\u003eNaturehike CW280\u003c\/a\u003e will give you great freedom of movement in the tent.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Air-E \/ Regular (under 175cm)","offer_id":52615468384593,"sku":"14:10#AIR-E Regular;200007763:201441035","price":179.0,"currency_code":"EUR","in_stock":true},{"title":"Air-E \/ Tall (under 185cm)","offer_id":52615468417361,"sku":"14:200002984#AIR-E Lengthen;200007763:201441035","price":179.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_air-e_aegismax.webp?v=1767034433"},{"product_id":"sac-de-couchage-moins-10-aegismax-ultra-future-ii","title":"Down sleeping bag -10° degrees | Aegismax ULTRA FUTURE II","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,328 g (bag only, Long version)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eDimensions:\u003c\/b\u003e 210 cm (usable length)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e -10 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -18 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFilling:\u003c\/b\u003e 800 cuin ultra-dry goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e Water-repellent 10D IFlex® nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e EN 13537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003ePrecision thermal architecture for expeditions\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Ultra Future II\u003c\/strong\u003e is designed for mountaineers and winter trekkers who cannot afford any flaws in their gear. Achieving a comfort temperature of -10°C requires cutting-edge engineering to block body heat loss. This \u003cb\u003e-10 degree sleeping bag\u003c\/b\u003e features differentiated baffles, combining vertical channels on the torso and horizontal ones on the joints, preventing any down migration while you sleep.\u003c\/p\u003e\n\u003ch3\u003eHydrophobic down and weight-to-warmth ratio\u003c\/h3\u003e\n\u003cp\u003eAt the heart of this model is its \u003cb\u003eRDS-certified 800 cuin goose down\u003c\/b\u003e, which has undergone an ultra-dry treatment. This technology repels moisture generated by perspiration and tent condensation, ensuring the feathers do not clump together over consecutive nights. Wrapped in extremely lightweight and durable \u003cb\u003e10D IFlex® nylon\u003c\/b\u003e, this \u003cb\u003eextreme cold sleeping bag\u003c\/b\u003e secures your most demanding nights without weighing down your ascent pack.\u003c\/p\u003e\n\u003cp\u003eHowever, if your next adventures take place in the lowlands during the summer, where the search for coolness, space, and easy maintenance (synthetic fiber) replaces the need for thermal survival, the rectangular design of the \u003ca title=\"See the Naturehike U150 summer sleeping bag\" href=\"\/en\/products\/sac-de-couchage-coton-10-degres-naturehike-u150\"\u003eNaturehike U150\u003c\/a\u003e will perfectly suit this recreational use.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"ULTRA FUTURE II \/ Red","offer_id":52801985970513,"sku":"14:173#ULTRA FUTURE-II-L;200007763:201336100","price":319.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_ULTRA_FUTURE_II_04.webp?v=1774708437"},{"product_id":"sac-de-couchage-duvet-moins-5-degres-blacksnow","title":"Down sleeping bag -5 degrees | Blacksnow","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,450 g\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eDimensions:\u003c\/b\u003e 210 × 80 cm (50 cm at the feet)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e -5 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -10 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800 cuin white goose down (1000 g)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e Water-repellent 20D 400T nylon\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eMassive thermal barrier for moderate winter trekking\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBlack Snow -5 degree down sleeping bag\u003c\/strong\u003e is designed for practitioners who believe that when it comes to cold, safety relies on uncompromising insulation volume. This model does not prioritize ultra-lightness, but instead relies on a colossal load of one kilogram of pure down to build an impenetrable thermal bulwark. It guarantees a rapid rise in internal temperature as soon as the zip is closed, which is crucial after a day of exertion in the cold.\u003c\/p\u003e\n\u003ch3\u003eDown resilience and extremity protection\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e800 cuin goose down\u003c\/b\u003e is particularly renowned for its ability to maintain an intact loft despite repeated storage in its compression sack. The \u003cb\u003eenlarged footbox\u003c\/b\u003e is specifically designed to prevent your feet from stretching the fabric, which would compress the down and ruin the insulation. The \u003cb\u003e400T nylon fabric\u003c\/b\u003e acts as a formidable windbreaker. It is a reliable tool for those venturing into mid-mountain winter environments.\u003c\/p\u003e\n\u003cp\u003eIf your mountaineering practice requires pushing certified insulation down to -10°C with cross-channel baffle engineering to stabilize the down in extreme conditions, the technical profile of the \u003ca title=\"Discover the Aegismax Ultra Future II\" href=\"\/en\/products\/sac-de-couchage-moins-10-aegismax-ultra-future-ii\"\u003eAegismax Ultra Future II\u003c\/a\u003e will be the best possible upgrade for your gear.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Blue","offer_id":52824016027985,"sku":"14:200006153#1450g blue","price":149.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_blacksnow_duvet.webp?v=1769206380"},{"product_id":"sac-de-couchage-trekking-10-degres-aegismax-nano","title":"10-degree trekking sleeping bag | Aegismax Nano","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 544 g (Regular) \/ 612 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e 10 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e 5 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e EN 13537\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 700 cuin ultra-dry white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 20D ripstop nylon with DWR water-repellent finish\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eMinimalist gear for long summer traverses\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Nano\u003c\/strong\u003e is designed for ultralight hiking (ULH) enthusiasts tackling long days of walking in mild temperatures. The goal of this \u003cb\u003eultra-compact sleeping bag\u003c\/b\u003e is not to combat extreme cold, but to provide just the right amount of insulation for the body to recover without carrying unnecessary bulk. Insulation is intelligently concentrated on the torso, while the rest of the bag is lightened to optimize overall weight.\u003c\/p\u003e\n\u003ch3\u003eHydrophobic down and extreme compressibility\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e700 cuin RDS-certified goose down\u003c\/b\u003e fill benefits from an ultra-dry treatment, delaying down collapse in damp conditions. Protected by a sturdy \u003cb\u003e20D ripstop nylon\u003c\/b\u003e, this model easily withstands nights under the stars or under a simple tarp. It is the quintessential \u003cb\u003etrekking sleeping bag\u003c\/b\u003e for summer.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Nano \/ Long (under 200cm)","offer_id":52833852064081,"sku":"14:365016#NANO-Purple-Lengthen;200007763:201336100","price":189.0,"currency_code":"EUR","in_stock":true},{"title":"Nano \/ Regular (under 175cm)","offer_id":52833852096849,"sku":"14:200006153#NANO-Purple-Regular;200007763:201336100","price":189.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_NANO_01.webp?v=1774708193"},{"product_id":"sac-de-couchage-duvet-aegismax-leto","title":"Down sleeping bag 5 degrees (7°C) | Aegismax Leto","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 642 g (Regular) \/ 706 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e +7 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e +2 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 700 cuin ultra-dry white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 20D ripstop nylon with DWR water-repellent finish\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eSize:\u003c\/b\u003e Standard (≤ 175 cm) \/ Long (≥ 185 cm)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eNatural insulation optimized for summer bivouacking\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Leto\u003c\/strong\u003e demonstrates the clear superiority of \u003cb\u003edown sleeping bags\u003c\/b\u003e when it comes to combining thermal performance with absolute lightness. Unlike synthetic fibers, down offers progressive and highly breathable warmth, avoiding the stifling sensation typical of summer nights in a tent. This model includes just enough fill to keep you warm on cool nights at medium altitudes, without weighing you down unnecessarily during the day.\u003c\/p\u003e\n\u003ch3\u003eLoft stability and anti-condensation protection\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e700 cuin RDS-certified goose down\u003c\/b\u003e features an ultra-dry treatment, a vital technology for preventing the down from clumping if it comes into contact with tent condensation. The mummy cut, combined with a \u003cb\u003e3D footbox\u003c\/b\u003e, allows the insulating material to expand fully without being compressed by your feet. The \u003cb\u003e20D ripstop nylon\u003c\/b\u003e ensures the longevity of this \u003cb\u003elightweight down bag\u003c\/b\u003e against the rigors of the trail.\u003c\/p\u003e\n\n\u003cp\u003eIf you are looking to cover a wider temperature range with a safety margin around the freezing point (0°C) for extended use through late autumn, the higher insulation volume of the \u003ca href=\"\/en\/products\/sac-de-couchage-3-saisons-blacksnow\" title=\"See the Black Snow 3-season sleeping bag\"\u003eBlack Snow 3-Season\u003c\/a\u003e will better meet your need for versatility.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Leto \/ Standard","offer_id":52834007122257,"sku":"14:496#LETO-Blue-Regular;200007763:201336100","price":199.0,"currency_code":"EUR","in_stock":true},{"title":"Leto \/ Lying down","offer_id":52834007155025,"sku":"14:200006151#LETO-Blue-Lengthen;200007763:201336100","price":209.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_LETO_02.webp?v=1774707937"},{"product_id":"sac-de-couchage-trekking-10-aegismax-g3","title":"Trekking sleeping bag -10 (-8°C) | Aegismax G3","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,350 g (Regular) \/ 1,434 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e -8 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -15 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFilling:\u003c\/b\u003e 800 cuin white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 15D IFlex® nylon with DWR water-repellent finish\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e 4.5 L\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e EN 13537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eExpedition sleeping bag for winter trekking\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax G3\u003c\/strong\u003e is a cornerstone for those facing consistently sub-zero temperatures. When the thermometer drops below -5°C, a \u003cb\u003ewinter sleeping bag\u003c\/b\u003e becomes the most critical safety element of your gear. This model ensures complete physiological recovery by drastically blocking body heat loss, allowing you to set off again clear-headed and rested the next day.\u003c\/p\u003e\n\u003ch3\u003eStrict compartmentation and loft retention\u003c\/h3\u003e\n\u003cp\u003eThe thermal performance of this bag relies on its \u003cb\u003e800 cuin RDS-certified goose down\u003c\/b\u003e, stabilized by a complex baffle construction. This engineering prevents the insulating material from shifting to the bottom of the bag, ensuring constant thickness across the torso and legs. Despite its ability to insulate down to -8°C, the \u003cb\u003e15D IFlex®\u003c\/b\u003e fabric allows for an astonishing 4.5-liter compression, preserving the balance of your backpack.\u003c\/p\u003e\n\u003cp\u003eIn the event that you are setting up a fixed base camp or a vehicle-supported bivouac with no weight constraints, where moisture-tolerant synthetic insulation is preferred, the robust alternative of the \u003ca title=\"See the Naturehike MJ600 synthetic model\" href=\"\/en\/products\/sac-de-couchage-moins-5-naturehike-mj600\"\u003eNaturehike MJ600\u003c\/a\u003e deserves your attention.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"G3 \/ Long (up to 196cm)","offer_id":52834168078673,"sku":"14:200003699#G3-black-Lengthen.;200007763:201336100","price":459.0,"currency_code":"EUR","in_stock":true},{"title":"G3 \/ Regular (up to 176cm)","offer_id":52834168176977,"sku":"14:100018786#G3-black-Regular.;200007763:201336100","price":439.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_G3_02.webp?v=1774707724"},{"product_id":"sac-de-couchage-trekking-10-degres-aegismax-mini","title":"10-degree (11°C) trekking sleeping bag | Aegismax MINI","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 440 g (Regular) \/ 560 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e +11 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e +6 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800-fill power white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 20D iFlex® nylon with DWR water-repellent finish\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003ePacked size:\u003c\/b\u003e 20 × 12 cm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e EN 13537 \u0026amp; ISO 23537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eHoodless trekking sleeping bag: usage and real-world conditions\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Mini trekking sleeping bag\u003c\/strong\u003e is designed without a hood, a design choice that reduces the weight to 440 g (Regular) and the packed volume to 20 × 12 cm. This format is well-suited for summer outings where nighttime temperatures remain around 10-15°C and where portability is prioritized over thermal margin. It is not suitable for nights below 6°C (limit temperature) without additional clothing.\u003c\/p\u003e\n\u003ch3\u003e800-fill power down: what it means in practice\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e800-fill power RDS-certified white goose down\u003c\/b\u003e indicates the loft of the fill: one ounce of down occupies 800 cubic inches once fully lofted. For an equivalent mass, an 800-fill power down provides more insulation than 650-fill power and compresses into a smaller volume. The \u003cb\u003e20D iFlex® nylon\u003c\/b\u003e shell with a DWR finish offers light resistance to morning dew, without guaranteeing waterproofing in the event of prolonged rain. For users seeking the same compressibility with an integrated hood and a broader thermal range of 7°C comfort, the \u003ca title=\"Aegismax Leto with hood\" href=\"\/en\/products\/sac-de-couchage-trekking-aegismax-leto\"\u003eAegismax Leto\u003c\/a\u003e is the model to compare.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"MINI \/ Tall (over 175cm)","offer_id":52839432651089,"sku":"14:366#MINI Green Lengthen;200007763:201336100","price":189.0,"currency_code":"EUR","in_stock":true},{"title":"MINI \/ Regular (under 175cm)","offer_id":52839432683857,"sku":"14:29#MINI Green Regular;200007763:201336100","price":179.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_aegismax_mini.webp?v=1767302604"},{"product_id":"sac-de-couchage-quilt-trek-aegismax-wind-hard-twilight","title":"Trek Quilt sleeping bag | Aegismax Wind Hard Twilight","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eType:\u003c\/b\u003e Down quilt (backless and hoodless)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 509 g (Regular) \/ 584 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e 0°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -5°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 800 cuin white goose down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 10D IFlex® Nylon with DWR water-repellent finish\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e ISO 23537 \u0026amp; EN 13537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eMinimalist backless sleeping system for ultralight trekking\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Wind Hard Twilight down quilt\u003c\/strong\u003e is a radical solution for trekkers looking to optimize every gram of their gear. By removing the back panel (which is unnecessary as down loses its insulating power when compressed under body weight) and the hood, this model drastically reduces bulk. It attaches directly to your sleeping pad, which takes over to block the cold from the ground during your \u003cb\u003e3-season bivouac\u003c\/b\u003e nights.\u003c\/p\u003e\n\u003ch3\u003eSleeping pad attachment and targeted insulation\u003c\/h3\u003e\n\u003cp\u003eThis modular system relies on premium \u003cb\u003e800 cuin RDS-certified goose down\u003c\/b\u003e insulation, ensuring near-instant warmth around your body. The retention straps prevent cold air from entering when you move, and the trapezoidal footbox locks in heat at your feet. The \u003cb\u003e10D IFlex® fabric\u003c\/b\u003e is extremely thin and requires careful handling, but it offers unparalleled \u003cb\u003eweight savings\u003c\/b\u003e. If the \"quilt\" approach seems too extreme for you and you prefer the secure closure of a classic mummy bag while maintaining excellent versatility, the \u003ca title=\"Discover the Black Snow 1150g trekking sleeping bag\" href=\"\/en\/products\/sac-de-couchage-trekking-saisons-blacksnow\"\u003eBlack Snow 0 degree\u003c\/a\u003e will perfectly meet that need.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Wind Hard Twilight \/ Tall (185cm)","offer_id":52894961369425,"sku":"14:1063#Twilight-Green-L;200007763:201336100","price":249.0,"currency_code":"EUR","in_stock":true},{"title":"Wind Hard Twilight \/ Regular (175cm)","offer_id":52894961402193,"sku":"14:175#Twilight-Green-R;200007763:201336100","price":229.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_quilt_0_degr_aegismax.webp?v=1767118322"},{"product_id":"sac-de-couchage-duvet-0-degre-aegismax-d2","title":"0-degree down sleeping bag | Aegismax D2","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,006 g (Regular) \/ 1,078 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eDimensions:\u003c\/b\u003e 196 × 78 cm (Regular) \/ 216 × 82 cm (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e 0°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -5°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eThermal standard:\u003c\/b\u003e EN 13537\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 650 cuin duck down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 15D iFlex® nylon with DWR water-repellent finish\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e 18 × 30 cm\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eProven natural insulation for 3-season bivouacking\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax D2\u003c\/strong\u003e is designed for hikers looking for rational thermal equipment, free from marketing superlatives. This \u003cb\u003e0-degree down sleeping bag\u003c\/b\u003e focuses on the essentials: guaranteeing a constant insulating barrier throughout the night. Its relaxed mummy cut offers the right compromise between immediate body heat retention and the need for internal mobility so as not to disrupt your sleep cycle.\u003c\/p\u003e\n\u003ch3\u003eFill stability and water-repellent protection\u003c\/h3\u003e\n\u003cp\u003eThe thermal performance of this bag relies on its \u003cb\u003e650 cuin RDS-certified duck down\u003c\/b\u003e, encapsulated in a system of internal baffles that prevent the material from shifting to the sides. This structure prevents the formation of cold spots in the chest and leg areas. The \u003cb\u003e15D iFlex® nylon\u003c\/b\u003e shell effectively manages morning condensation thanks to its DWR treatment, ensuring your \u003cb\u003ehiking down sleeping bag\u003c\/b\u003e retains its loft night after night.\u003c\/p\u003e\n\u003cp\u003eIf your routes regularly take you to altitudes where frost is significant, requiring massive goose down insulation capable of handling -5°C, the reinforced structure of the \u003ca title=\"View the Black Snow -5°C down model\" href=\"\/en\/products\/sac-de-couchage-duvet-moins-5-degres-blacksnow\"\u003eBlack Snow 1450g\u003c\/a\u003e will become necessary.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Up to 190cm","offer_id":52897677410641,"sku":"14:173#D2 L Black","price":309.0,"currency_code":"EUR","in_stock":true},{"title":"Up to 178cm","offer_id":52897677443409,"sku":"14:200006151#D2 M Black","price":299.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_D2_01.webp?v=1774707059"},{"product_id":"sac-de-couchage-trekking-5-degre-aegismax-g1","title":"5-degree (3°C) trekking sleeping bag | Aegismax G1","description":"\u003ch2\u003eTechnical specifications:\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 762 g (Regular) \/ 818 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePacked size:\u003c\/strong\u003e 15 x 28 cm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCompressed volume:\u003c\/strong\u003e 6 L (Regular)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCompression bag:\u003c\/strong\u003e XS 40 g included + mesh storage sack\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill:\u003c\/strong\u003e 800 cuin Lofty white goose down, RDS certified, 60\/40 ratio\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOuter fabric:\u003c\/strong\u003e iFlex® 15D nylon with DWR water-repellent treatment\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLining:\u003c\/strong\u003e iFlex® 15D Touch soft nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComfort temperature:\u003c\/strong\u003e +3°C \u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLimit temperature:\u003c\/strong\u003e -2°C (EN 13537 standard)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThermal standard:\u003c\/strong\u003e EN 13537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003e800 cuin ultralight trekking sleeping bag for 3-season bivouacs\u003c\/h2\u003e\n\u003cp\u003eOn a multi-day route, the choice of a \u003cstrong\u003etrekking sleeping bag\u003c\/strong\u003e relies on three variables: net weight, fill power, and reliability of the thermal construction. The Aegismax G1 responds with \u003cb\u003eRDS-certified 800 cuin Lofty white goose down\u003c\/b\u003e fill in a 60\/40 ratio, a weight of 762 g in Regular, and a box-baffle construction with mesh walls that eliminates cold spots by maintaining loft without side compression. The EN 13537 temperature range indicates comfort at +3°C, a limit at -2°C, and an extreme at -18°C (theoretical survival threshold). These values are measured in a laboratory: a sleeping pad with low thermal resistance or a damp night will shift the feeling towards the cold.\u003c\/p\u003e\n\u003ch3\u003eThermal construction optimized for touring\u003c\/h3\u003e\n\u003cp\u003eThe 4-chamber hood with dual drawcords maintains loft around the head, a critical zone on \u003cb\u003eultralight sleeping bags\u003c\/b\u003e. The tubular draft tube running along the \u003cb\u003etwo-way YKK #5 zipper\u003c\/b\u003e blocks cold air infiltration. The anatomical 3D footbox preserves the volume of the fill around the feet. The \u003cb\u003eiFlex® 15D Touch\u003c\/b\u003e lining improves comfort while \u003cb\u003ebivouacking\u003c\/b\u003e without adding weight.\u003c\/p\u003e\n\u003ch3\u003eCompressibility and versatility for trekking\u003c\/h3\u003e\n\u003cp\u003eCompressed in its 40 g XS bag, the G1 reaches 6 L in Regular. An \u003cb\u003e800 cuin\u003c\/b\u003e rating allows for quick loft recovery after compression. The Long version (818 g) fits up to 185 cm. Regular and Long versions can be zipped together. For a \u003cb\u003etrekking down bag\u003c\/b\u003e in dry conditions over three to five days, this construction\/weight ratio makes for a strong argument in this price range.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"G1 \/ Black - Long (up to 196cm)","offer_id":53173004894545,"sku":"14:173#G1-black-Lengthen.;200007763:201336100","price":249.0,"currency_code":"EUR","in_stock":true},{"title":"G1 \/ Black - Regular (up to 176cm)","offer_id":53173004927313,"sku":"14:175#G1-black-Regular.;200007763:201336100","price":239.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_aegismax_d1.webp?v=1767304730"},{"product_id":"sac-de-couchage-0-degre-trekking-ultralight-aegismax-dusk-ii","title":"0 degree trekking sleeping bag (1°C) | Aegismax Dusk II","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 651 g (regular) \/ 737 g (long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCompressed size:\u003c\/strong\u003e 18 × 30 cm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComfort temperature:\u003c\/strong\u003e 1°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLimit temperature:\u003c\/strong\u003e -4°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill:\u003c\/strong\u003e RDS-certified, 800FP Ultra-Dry water-repellent grey duck down\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOuter fabric:\u003c\/strong\u003e DWR-treated iFlex 7D Ripstop Nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThermal standard:\u003c\/strong\u003e EN 13537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eUltralight 800FP down sleeping bag for 3-season trekking and bivouacking\u003c\/h2\u003e\n\u003cp\u003eThe Aegismax Windhard Dusk II \u003cstrong\u003esleeping bag\u003c\/strong\u003e combines \u003cb\u003eRDS-certified 800FP Ultra-Dry\u003c\/b\u003e grey duck down insulation with a DWR-treated \u003cb\u003eiFlex 7D Ripstop Nylon\u003c\/b\u003e fabric, weighing just 651 g for the Regular version, including the compression sack. The comfort temperature is rated at \u003cb\u003e1°C\u003c\/b\u003e and the limit temperature at \u003cb\u003e-4°C\u003c\/b\u003e, measured according to the EN 13537 standard in standardized laboratory conditions using an insulating mat, long underwear, and a dry environment. In real-world terrain conditions, particularly at high altitudes or with residual humidity, allow for a 3 to 5°C margin beyond the stated limit value.\u003c\/p\u003e\n\u003ch3\u003eUltra-Dry treatment and heat-leak prevention structure\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003eUltra-Dry\u003c\/b\u003e water-repellent treatment applied to the down preserves much of its loft in cases of light moisture, perspiration, or nocturnal condensation, though it does not replace a waterproof bivy sack for exposed bivouacking. The wrap-around design incorporates a \u003cb\u003edraft tube\u003c\/b\u003e, an adjustable neck baffle, and an anti-snag system on the zipper: three design features that reduce heat loss in the areas most prone to thermal leakage in this type of product.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"Dusk II \/ Lying down","offer_id":53570402222417,"sku":"14:200006153#Dusk II-Lengthen;200007763:201441035","price":299.0,"currency_code":"EUR","in_stock":true},{"title":"Dusk II \/ Regular","offer_id":53570402353489,"sku":"14:200006152#Dusk II-Regular;200007763:201441035","price":289.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/aegismax_dusk_II.webp?v=1776601433"},{"product_id":"sac-de-couchage-trekking-ageismax-nano-2","title":"Ultralight Sleeping Bag 5°C | Aegismax NANO 2","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 624g (regular) and 742g (lengthened)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCompressed size:\u003c\/strong\u003e 25×15 cm (Regular) \/ 28×15 cm (Lengthened)\u003cstrong\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill:\u003c\/strong\u003e 800FP white goose down, RDS certified \/ 350 g (Regular) \/ 400 g (Lengthened)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOuter fabric:\u003c\/strong\u003e 15D IFlex Nylon Ripstop with DWR treatment\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLining:\u003c\/strong\u003e 15D polyester taffeta\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComfort temperature:\u003c\/strong\u003e 5°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLimit temperature:\u003c\/strong\u003e 0°C \u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThermal standard:\u003c\/strong\u003e EN 13537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003e800FP down mummy ultralight sleeping bag for bivouacking and trekking\u003c\/h2\u003e\n\u003cp\u003eThe Aegismax Nano 2 \u003cstrong\u003eultralight sleeping bag\u003c\/strong\u003e is a hoodless mummy bag designed for solo bivouacking and trekking, weighing \u003cb\u003e624 g\u003c\/b\u003e in the Regular version with \u003cb\u003e350 g of 800FP RDS-certified\u003c\/b\u003e white goose down fill. The \u003cb\u003ebox-baffle\u003c\/b\u003e construction separates the fill into distinct compartments to maintain even down distribution throughout the night, eliminating cold spots at the shoulders and sides.\u003c\/p\u003e\n\u003ch3\u003e15D IFlex DWR fabric: lightweight and resistant to light moisture\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e15D IFlex Nylon Ripstop\u003c\/b\u003e fabric with DWR treatment for the outer shell and the 15D polyester taffeta lining in contact with the skin offer a strength-to-weight ratio that is difficult to achieve with thicker fabrics. The \u003cb\u003eDWR\u003c\/b\u003e treatment repels light moisture and resists dirt without guaranteeing total waterproofing: a bivy bag is still recommended for bivouacking exposed to precipitation.\u003c\/p\u003e\n\u003cp\u003eThe three-dimensional foot box adapts to the shape of the feet without compressing the toes, and the \u003cb\u003eself-sealing vent\u003c\/b\u003e allows for thermal regulation without opening the main zipper. The Regular and Lengthened versions can be \u003cb\u003ezipped together\u003c\/b\u003e for use as a double bag. Two storage bags included: an ultralight compression bag for transport and a mesh bag for \u003cb\u003elong-term storage\u003c\/b\u003e without compressing the fill.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"Nano 2 \/ Lying down","offer_id":53671036191057,"sku":"14:366#NANO 2-Lengthen;200007763:201336100","price":299.0,"currency_code":"EUR","in_stock":true},{"title":"Nano 2 \/ Regular","offer_id":53671036223825,"sku":"14:29#NANO 2-Reglar;200007763:201336100","price":279.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/aegismax_nano_2.webp?v=1777657663"},{"product_id":"sac-de-couchage-grand-froid-naturehike-base1100","title":"Extreme cold sleeping bag -16°C | Naturehike BASE1100","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDimensions (M):\u003c\/strong\u003e 200×85 cm — recommended height under 175 cm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDimensions (L):\u003c\/strong\u003e 210×90 cm — recommended height over 175 cm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComfort temperature:\u003c\/strong\u003e -16°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLimit temperature:\u003c\/strong\u003e -25°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eExtreme temperature:\u003c\/strong\u003e -50°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1530g (M) \u0026amp; 1620g (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill:\u003c\/strong\u003e 650FP water-repellent duck down — 90% down clusters \/ cleanliness 1000 mm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDown certification:\u003c\/strong\u003e Responsible Down Standard (RDS)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOuter fabric:\u003c\/strong\u003e 20D waterproof, breathable, ripstop nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThermal standard:\u003c\/strong\u003e GB\/T 38426-2019 and ISO 23537-1\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eThermal certification GB\/T 38426 and ISO 23537: interpreting values and validity conditions\u003c\/h2\u003e\n\u003cp\u003eThe BASE1100 certifies a comfort temperature of \u003cb\u003e-16°C\u003c\/b\u003e and a limit temperature of \u003cb\u003e-25°C\u003c\/b\u003e according to \u003cb\u003eGB\/T 38426-2019\u003c\/b\u003e and \u003cb\u003eISO 23537-1\u003c\/b\u003e standards, which are measurement protocols using thermal mannequins in standardized conditions. These two standards coexist with identical test protocols: the values are directly comparable between models certified under either reference. The extreme temperature of \u003cb\u003e-50°C\u003c\/b\u003e corresponds to the theoretical survival threshold defined by the standard, applicable only in emergency situations with full equipment. In field conditions at this range, a sleeping pad with an \u003cb\u003eR-value greater than 5\u003c\/b\u003e, a merino base layer, and airtight wind protection are non-negotiable prerequisites.\u003c\/p\u003e\n\u003ch3\u003e650FP water-repellent duck down: 1000 mm cleanliness and RDS certification\u003c\/h3\u003e\n\u003cp\u003eThe filling is \u003cb\u003e650FP\u003c\/b\u003e water-repellent \u003cstrong\u003educk down\u003c\/strong\u003e, with a \u003cb\u003e90%\u003c\/b\u003e down cluster ratio and a cleanliness rating of \u003cb\u003e1000 mm\u003c\/b\u003e certified by a third-party laboratory. The 650FP fill power positions this model below the 750-800FP of ultralight bags: compressed volume and weight are higher for an equivalent thermal fill, offset by a lower production cost and increased moisture resistance thanks to the water-repellent treatment applied directly to the down. The \u003cb\u003eResponsible Down Standard (RDS)\u003c\/b\u003e certification ensures the traceability of the down supply chain, from breeding to processing.\u003c\/p\u003e\n\u003ch3\u003eVertical box construction and 14-stitch\/3 cm down-proof thread: anti-migration and anti-leak\u003c\/h3\u003e\n\u003cp\u003eThe construction uses a \u003cb\u003evertical box structure\u003c\/b\u003e with independent compartments and high-density down-proof thread at \u003cb\u003e14 stitches per 3 cm\u003c\/b\u003e. The vertical box keeps the fill in position without nighttime migration, whereas box-stitch construction creates cold spots at every seam line. Three design points limit heat loss in critical areas: a full-length anti-draft baffle along the zipper, a mummy hood with independent drawstrings, and an \u003cb\u003eenveloping foot box\u003c\/b\u003e insulated in three dimensions.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"Blue \/ L \/ 1100","offer_id":53842459984209,"sku":"14:200003699#Base Blue 1100 L;200007763:201336100","price":489.0,"currency_code":"EUR","in_stock":true},{"title":"Blue \/ M \/ 1100","offer_id":53842460180817,"sku":"14:200005536#Base Blue 1100 M;200007763:201336100","price":469.0,"currency_code":"EUR","in_stock":true},{"title":"Grey \/ L \/ 1100","offer_id":53842460148049,"sku":"14:100018786#Base Grey 1100 L;200007763:201336100","price":489.0,"currency_code":"EUR","in_stock":true},{"title":"Grey \/ M \/ 1100","offer_id":53842460213585,"sku":"14:365016#Base Grey 1100 M;200007763:201336100","price":469.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/naturehike_base1100_bleu.webp?v=1779491876"},{"product_id":"sac-de-couchage-quilt-naturehike-cicada","title":"10°C Quilt Sleeping Bag | Naturehike Cicada","description":"\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 385 g (M) \/ 455 g (L) — 425 g \/ 495 g packed\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 175 x 70 cm (M) \/ 190 x 80 cm (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePacked size:\u003c\/strong\u003e 13 x 23 cm (M) \/ 15 x 28 cm (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill:\u003c\/strong\u003e 750 FP goose down, 90% down, 1000 mm cleanliness, \u003cstrong\u003eRDS certified\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill weight:\u003c\/strong\u003e 200 g (M) \/ 230 g (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOuter fabric:\u003c\/strong\u003e 10D down-proof nylon, DWR water-repellent treatment\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComfort temperature:\u003c\/strong\u003e 10.5°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLimit temperature:\u003c\/strong\u003e 6.4°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThermal standard:\u003c\/strong\u003e GB\/T 38426 \/ ISO 23537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003e750 FP Ultralight Quilt for summer trekking and mid-season\u003c\/h2\u003e\n\u003cp\u003eAt 385 g in size M (425 g packed), the Naturehike Cicada \u003cstrong\u003eultralight quilt\u003c\/strong\u003e is designed for trekkers looking to optimize their weight-to-warmth ratio. Unlike a mummy bag, the open wrap shape without an integrated hood reduces total weight and frees up the shoulders in summer, at the cost of requiring active management of nighttime insulation. The \u003cb\u003e750 FP goose down\u003c\/b\u003e fill, 90% down, 1000 mm certified cleanliness, and RDS traceability offers high loft for 200 g of fill in size M.\u003c\/p\u003e\n\u003ch3\u003eUnderstanding GB\/T 38426 and ISO 23537 certified temperatures\u003c\/h3\u003e\n\u003cp\u003eThe temperature range is measured according to \u003cb\u003eGB\/T 38426 or ISO 23537\u003c\/b\u003e, protocols using an instrumented thermal mannequin under controlled conditions. The comfort rating of +10.5°C corresponds to a standard female user sleeping in a relaxed position. The limit of +6.4°C is the threshold at which a male user maintains thermal balance while curled up. The \u003cb\u003eextreme of -6.3°C\u003c\/b\u003e is a theoretical survival threshold, not a target usage. In the field, humidity, altitude, and sleeping pads alter these values: a good sleeping pad \u003cb\u003eR-value\u003c\/b\u003e remains essential.\u003c\/p\u003e\n\u003ch3\u003e10D DWR Nylon and compressibility for backpacking\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e10D down-proof nylon\u003c\/b\u003e fabric with DWR treatment handles light condensation. The YKK zipper and Duraton accessories ensure durability at stress points. Compressed to 13 x 23 cm in size M, the Cicada fits into a \u003cb\u003ecompact lightweight sleeping bag\u003c\/b\u003e of 20 to 30 L. The size L (455 g, 15 x 28 cm) covers up to 190 cm with 230 g of fill.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"M","offer_id":53945354813777,"sku":"14:29#Grey M","price":199.0,"currency_code":"EUR","in_stock":true},{"title":"L","offer_id":53945354846545,"sku":"14:366#Grey L","price":199.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/S22c0d0dd82ce41b08d38df4bcd5f8a9dl.webp?v=1780488662"},{"product_id":"sac-de-couchage-grand-froid-naturehike-jv1300","title":"Extreme cold sleeping bag -17°C | Naturehike JV1300","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.78 kg (M) \/ 1.88 kg (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 87 x 193 cm (M) \/ 87 x 203 cm (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePacked size:\u003c\/strong\u003e ɶ27 x 45 cm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill:\u003c\/strong\u003e 750 FP white goose down, 90% down, 1000mm cleanliness, \u003cstrong\u003eRDS certified\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill weight:\u003c\/strong\u003e 1300g\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOuter fabric:\u003c\/strong\u003e 20D Toray nylon, DWR water-repellent treatment\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLining:\u003c\/strong\u003e 10D down-proof nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComfort temperature:\u003c\/strong\u003e -17.7°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLimit temperature:\u003c\/strong\u003e -26.7°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThermal standard:\u003c\/strong\u003e GB\/T 38426 \/ ISO 23537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003e1300g extreme cold sleeping bag for demanding winter treks\u003c\/h2\u003e\n\u003cp\u003eThe Naturehike JV1300 is an \u003cstrong\u003eextreme cold sleeping bag\u003c\/strong\u003e designed for demanding winter conditions: high-altitude bivouacs, winter treks, or expeditions in extreme cold. A fill of \u003cb\u003e1300g of 750 FP white goose down\u003c\/b\u003e, 90% down, 1000mm cleanliness, and RDS certification provides substantial insulation within a temperature range measured according to GB\/T 38426 and ISO 23537. The comfort rating of -17.7°C corresponds to a standard user sleeping in a relaxed position. The limit of -26.7°C is the equilibrium threshold for men in a curled-up position. The extreme of -52.7°C is a theoretical survival threshold and should never be confused with the target usage.\u003c\/p\u003e\n\u003ch3\u003eExtreme cold thermal construction: vertical velvet and baffles\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003evertical velvet\u003c\/b\u003e construction keeps the fill in a fixed position within each chamber, eliminating down shifting and cold spots at the seams. The zip baffle blocks cold air infiltration along the \u003cb\u003eanti-snag YKK\u003c\/b\u003e zipper. Anti-wind side strips on both sides reduce heat loss from the flanks. The adjustable collar insulates the neck area. The covered 3D footbox protects the feet without compressing the fill. These features are exclusive to the 1000g and 1300g versions.\u003c\/p\u003e\n\u003ch3\u003eToray 20D fabric and independent laboratory certification\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e20D Toray nylon DWR\u003c\/b\u003e outer fabric combines tear resistance with surface water repellency. The \u003cb\u003e10D down-proof nylon\u003c\/b\u003e lining limits fill migration. The dual-zip closure allows for arm movement without leaving the bag. Compressed to ɶ27x45cm and weighing 1.78kg in size M, the JV1300 comes with a compression sack and a mesh bag for long-term storage.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"M","offer_id":53947869921617,"sku":"14:200004890#JV1300 M","price":999.0,"currency_code":"EUR","in_stock":true},{"title":"L","offer_id":53947869954385,"sku":"14:200006156#JV1300 L","price":999.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/naturehike_jv1300.webp?v=1780522020"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/collections\/sac-de-couchage-duvet.webp?v=1769624256","url":"https:\/\/duvet-nomade.com\/en\/collections\/sac-de-couchage-duvet.oembed?page=3","provider":"Duvet Nomade","version":"1.0","type":"link"}