{"title":"Aegismax sleeping bag","description":"\u003ch2\u003eAegismax technical positioning\u003c\/h2\u003e\n\u003cp\u003eAegismax's specificity is based on the use of \u003cb\u003ehigh-density goose down\u003c\/b\u003e, generally ranging between 800 and 900 fill power depending on the model. Loft is measured according to the Chinese \u003cb\u003eGB\/T 14272-2021\u003c\/b\u003e standard, which includes a down cleanliness requirement of 500 mm or more—an indicator of the quality of the filling's sorting and washing. Comfort temperatures are expressed according to the \u003cb\u003eEN 13537 and ISO 23537\u003c\/b\u003e system to facilitate comparison with European standards.\u003c\/p\u003e\n\u003cp\u003eIn practice, this positioning translates into \u003cb\u003eultralight sleeping bags\u003c\/b\u003e with weights between 600 g and 900 g for comfort temperatures ranging from 0°C to -15°C—a performance level difficult to achieve with synthetic filling at the same weight.\u003c\/p\u003e\n\u003ch2\u003eConstruction and model features\u003c\/h2\u003e\n\u003cp\u003eAegismax sleeping bags adopt a \u003cb\u003emummy shape\u003c\/b\u003e with an adjustable hood and thermal collar, two structural elements that limit heat loss at the most exposed points. The \u003cb\u003eripstop nylon\u003c\/b\u003e outer fabric with DWR treatment offers adequate resistance to water splashes and light abrasion. The baffled construction keeps the \u003cb\u003eultralight down\u003c\/b\u003e evenly distributed and prevents localized cold spots.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003e800 to 900 fill power\u003c\/b\u003e: high compressibility and weight-to-insulation ratio\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eReduced compressed volume\u003c\/b\u003e: between 3 and 5 liters depending on the model, freeing up space in the backpack\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eAnatomic hood and collar\u003c\/b\u003e: essential for nights below 5°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eGB\/T 14272-2021 standard\u003c\/b\u003e: guarantees the quality and cleanliness of the stated down filling\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eFor which profile and usage?\u003c\/h2\u003e\n\u003cp\u003eAegismax models are primarily aimed at \u003cb\u003eexperienced hikers and trekkers\u003c\/b\u003e who have mastered the parameters for using a down sleeping bag: a sleeping pad with an appropriate R-value, moisture management, and regular drying of the filling. High-density natural down is less tolerant to moisture than synthetic—a point to consider when choosing based on the planned outing conditions.\u003c\/p\u003e\n\u003cp\u003eFor colder conditions, winter bivouacs, or alpine climbs below -10°C, \u003ca title=\"extreme cold sleeping bag\" href=\"\/en\/collections\/sac-de-couchage-grand-froid\"\u003eDuvet Nomade's extreme cold sleeping bag collection\u003c\/a\u003e gathers a selection of models with temperature ranges calibrated for these specific uses, with detailed technical specifications for each reference.\u003c\/p\u003e","products":[{"product_id":"sac-de-couchage-3-saisons-aegismax-leto","title":"3-season sleeping bag | Aegismax Leto","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eMaterial:\u003c\/b\u003e 20D water-repellent (DWR) ripstop nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e approx. 642 g (Regular) \/ 706 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 700 fill power ultra-dry white goose down, RDS certified\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\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\u003eThermal standard:\u003c\/b\u003e EN 13537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eUltra-light down sleeping bag for hiking and three-season bivouacking\u003c\/h2\u003e\n\u003cp\u003e\u003cb\u003eThe Aegismax Leto sleeping bag\u003c\/b\u003e is designed for hikers and trekkers seeking a lightweight, compact \u003cb\u003e3-season sleeping bag\u003c\/b\u003e capable of handling a wide range of conditions without the need for multiple pieces of equipment. The goal is clear: set off with a single reliable bag for spring, summer, and early autumn, while keeping your backpack light and well-balanced.\u003c\/p\u003e\n\u003ch3\u003eDown designed for versatility while trekking\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eThe 700 fill power ultra-dry white goose down, RDS certified\u003c\/b\u003e, offers progressive and stable insulation, ideal for cool mid-season nights as well as summer bivouacs at altitude. In dry conditions and with a suitable insulating mat, the usage corresponds to a \u003cb\u003e5-degree sleeping bag\u003c\/b\u003e, with enough margin to handle nights around +2 °C without major discomfort for an experienced user.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe mummy cut\u003c\/b\u003e limits unnecessary air volume to be heated and allows for full utilization of the down, while maintaining enough freedom of movement for sleeping several nights in a row. The 3D footbox prevents the down from being compressed at the feet, a sensitive area when temperatures drop late in the season.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe 20D water-repellent ripstop nylon fabric\u003c\/b\u003e effectively protects the down against dew, light moisture, and condensation encountered during three-season bivouacking. The two-way YKK zipper facilitates ventilation during milder nights. The \u003cb\u003eAegismax Leto\u003c\/b\u003e is suitable for long-distance hiking, trekking, and lightweight bivouacking, for those who want a \u003cb\u003ecompact and lightweight sleeping bag\u003c\/b\u003e that is versatile enough to last a full season without unnecessary compromises.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Leto \/ Standard","offer_id":52581167661393,"sku":"14:29#LETO-Grey-Regular;200007763:201336100","price":199.0,"currency_code":"EUR","in_stock":true},{"title":"Leto \/ Lying down","offer_id":52581167694161,"sku":"14:366#LETO-Grey-Lengthen;200007763:201336100","price":249.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_LETO_01.webp?v=1774707993"},{"product_id":"sac-de-couchage-duvet-aegismax-nano-10-degre","title":"3-season sleeping bag | Aegismax Nano","description":"\u003cul\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\u003cstrong\u003e\u003c\/strong\u003e EN 13537\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eMaterial:\u003c\/b\u003e 20D ripstop nylon with water-repellent (DWR) finish\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e approx. 544 g (Regular) \/ 612 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFilling:\u003c\/b\u003e 700 cuin ultra-dry white goose down, RDS certified\u003cb\u003e\u003c\/b\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eUltra-compact down sleeping bag for summer bivouacking\u003c\/h2\u003e\n\u003cp\u003e\u003cb\u003eThe Aegismax Nano sleeping bag\u003c\/b\u003e is designed for those who want to sleep outdoors in the summer without being weighed down. When the priority is to reduce backpack weight to the bare minimum, this \u003cstrong\u003eultralight sleeping bag\u003c\/strong\u003e allows you to travel with only the essentials, while maintaining a minimum of thermal comfort for mild nights.\u003c\/p\u003e\n\u003ch3\u003eA minimalist down bag for lightweight sleeping in mild weather\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eThe design\u003c\/b\u003e clearly plays the weight-saving card with RDS-certified down. The filling is reinforced on the upper body, where heat loss is felt most, while the rest of the bag uses a lighter construction. In practice, this serves as a \u003cb\u003e5-degree sleeping bag\u003c\/b\u003e for dry summer nights, when used with an appropriate insulated sleeping pad.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe outer fabric\u003c\/b\u003e made of 20D ripstop nylon with a DWR treatment helps handle light moisture, morning dew, or condensation under a tarp. The 3D footbox provides better comfort for the feet, and the two-way YKK zipper allows the bag to be opened wide when the temperature rises. The \u003cstrong\u003eAegismax Nano\u003c\/strong\u003e is suitable for summer hiking, \u003cb\u003elightweight bivouacking\u003c\/b\u003e, and travel where volume and weight take precedence over warmth, for those who want a \u003cb\u003ecompact sleeping bag\u003c\/b\u003e that is simple and consistent with mild-weather use.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Nano \/ Regular (under 175cm)","offer_id":52581179851089,"sku":"14:193#NANO-Red-Regular;200007763:201336100","price":189.0,"currency_code":"EUR","in_stock":true},{"title":"Nano \/ Long (under 200cm)","offer_id":52581179785553,"sku":"14:200006152#NANO-Red-Lengthen;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_03.webp?v=1774708268"},{"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-10-degre-aegismax-mini","title":"3-season sleeping bag (11°C) | 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\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e Water-repellent DWR 20D iFlex® nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e 20 × 12 cm\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\u003eThe essential sleeping bag for lightweight trekking\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Mini 3-season sleeping bag\u003c\/strong\u003e is designed for adventurers who refuse superfluous gear. Its approach is radical: remove the hood and dead space to keep only the strict insulation necessary for late spring, summer, and early autumn nights. It is the logical choice for fast hikers and cycle tourists who count every liter of bulk in their bags.\u003c\/p\u003e\n\u003ch3\u003eRecord-breaking loft and compactness\u003c\/h3\u003e\n\u003cp\u003eThanks to the use of \u003cb\u003e800-fill power goose down\u003c\/b\u003e, this \u003cb\u003eultralight sleeping bag\u003c\/b\u003e compresses to the size of a small water bottle, while guaranteeing a loft capable of effectively insulating you at around 11°C. The absence of a hood is offset by an efficient drawstring at the neck. The \u003cb\u003e20D DWR nylon\u003c\/b\u003e shell manages dew without increasing the overall weight. It is a \u003cb\u003etrekking down bag\u003c\/b\u003e of formidable efficiency for the warmer seasons.\u003c\/p\u003e\n\n\u003cp\u003eIf you appreciate this ultralight equipment philosophy for the warmer seasons but consider a hood essential to protect your head from nighttime drafts, the \u003ca href=\"\/en\/products\/sac-de-couchage-duvet-aegismax-leto\" title=\"Discover the Aegismax Leto with hood\"\u003eAegismax Leto\u003c\/a\u003e model will be the perfect alternative.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"MINI \/ Tall (over 175cm)","offer_id":52581225038161,"sku":"14:10#MINI Black Lengthen;200007763:201336100","price":189.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_aegismax_leto.webp?v=1767302552"},{"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-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-quilt-0-degre-aegismax","title":"0 Degree Quilt Sleeping Bag | Aegismax Wind Hard Twilight","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\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\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 10D IFlex® water-repellent DWR nylon\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 quilt for ultra-light hiking\u003c\/h2\u003e\n\u003cp\u003eChoosing a \u003cstrong\u003e0-degree bivouac quilt\u003c\/strong\u003e follows a strict logic of equipment optimization. By removing the hood and the back section that gets compressed by the sleeper, the Aegismax Wind Hard Twilight eliminates unnecessary weight. Thermal insulation then relies directly on the capabilities of your sleeping pad (R-value). The 0 °C comfort temperature is only achieved if the quilt is properly strapped to the pad and used away from drafts.\u003c\/p\u003e\n\u003ch3\u003eWeight-to-warmth ratio and compressibility\u003c\/h3\u003e\n\u003cp\u003eThe 800 cuin RDS-certified goose down filling ensures exceptional loft while compressing massively in the backpack. The EN 13537 standard certifies the reliability of the stated thermal data, limiting the risk of error at altitude. The 10D fabric requires careful handling during setup, but provides an effective water-repellent barrier against nocturnal condensation.\u003c\/p\u003e\n\u003cp\u003eIf the Quilt format seems too minimalist and you prefer the full coverage of a traditional sleeping bag with a hood for facing the same temperatures, the profile of the \u003ca href=\"\/en\/products\/sac-de-couchage-0-degre-blacksnow\" title=\"Discover the Blacksnow 0-degree sleeping bag\"\u003eBlacksnow 0-degree\u003c\/a\u003e will be an excellent alternative.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Wind Hard Twilight \/ Tall (185cm)","offer_id":52599465771345,"sku":"14:200005536#Twilight-White-L;200007763:201336100","price":249.0,"currency_code":"EUR","in_stock":true},{"title":"Wind Hard Twilight \/ Regular (175cm)","offer_id":52599465738577,"sku":"14:365016#Twilight-White-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_hard_wind_twilight.webp?v=1767118409"},{"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-aegismax-ultra-future-ii","title":"-10 degree sleeping bag | 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 1,187 g (bag only)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eDimensions:\u003c\/b\u003e Suitable for heights up to 190 cm\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 IFlex® 10D 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\u003eTechnical sleeping gear for demanding winter bivouacking\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax Ultra Future II -10 degree sleeping bag\u003c\/strong\u003e is aimed at experienced individuals who refuse to sacrifice weight on the altar of warmth. When conditions become consistently sub-zero, the goal is to maintain a stable thermal microclimate around the body. This exceptional model achieves the feat of offering a certified barrier for extreme cold while flirting with the one-kilo mark, a decisive asset for fast ascents or long-distance winter trekking.\u003c\/p\u003e\n\u003ch3\u003eBaffling engineering and hydrophobic down\u003c\/h3\u003e\n\u003cp\u003eThe superiority of this \u003cb\u003eextreme cold sleeping bag\u003c\/b\u003e rests on a complex internal architecture combining vertical and horizontal channels. This structure physically blocks the migration of the \u003cb\u003e800 cuin RDS certified goose down\u003c\/b\u003e, ensuring constant insulation thickness even if you move around a lot during the night. The \u003cb\u003eultra-dry\u003c\/b\u003e treatment applied to the feathers prevents them from collapsing due to condensation. The \u003cb\u003eIFlex® 10D\u003c\/b\u003e fabric offers maximum breathability while repelling surface moisture.\u003c\/p\u003e\n\u003cp\u003eIf your winter expeditions require comparable thermal insulation but with a cut that incorporates massive internal windproof reinforcements and 20D fabric that is more robust against repeated friction, the profile of the \u003ca title=\"Discover the Naturehike SP1000 sleeping bag\" href=\"\/en\/products\/sac-de-couchage-moins-10-naturehike-sp1000\"\u003eNaturehike SP1000\u003c\/a\u003e will perfectly round out your considerations.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"ULTRA FUTURE II \/ Magenta","offer_id":52801986593105,"sku":"14:200006151#ULTRA FUTURE-II-M;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_02.webp?v=1774708339"},{"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-trekking-aegismax-leto","title":"5-degree (7°C) trekking sleeping bag | Aegismax Leto","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eMaterial:\u003c\/b\u003e water-repellent (DWR) 20D ripstop nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e approx. 642 g (Regular) \/ 706 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFilling:\u003c\/b\u003e 700 cuin ultra-dry white goose down, RDS certified\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\u003eSize:\u003c\/b\u003e Standard (≤ 175 cm) \/ Long (≥ 185 cm)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eTrekking down sleeping bag for three-season hiking and high-altitude bivouacking\u003c\/h2\u003e\n\u003cp\u003eDesigned for \u003cstrong\u003etrekking\u003c\/strong\u003e, this model meets the demands of long-distance hiking where every gram counts: \u003cb\u003e5-degree sleeping bag\u003c\/b\u003e, \u003cb\u003emid-season down bag\u003c\/b\u003e, \u003cb\u003econtrolled weight\u003c\/b\u003e (approx. 642 g (Regular) \/ 706 g (Long)). The comfort temperature of \u003cb\u003e+7 °C\u003c\/b\u003e is suitable for \u003cb\u003espring bivouacking\u003c\/b\u003e in the Alps or Pyrenees between 1,500 and 2,500 m, with the possibility of pushing toward the \u003cb\u003elimit temperature of +2 °C\u003c\/b\u003e for those accustomed to cool nights.\u003c\/p\u003e\n\u003ch3\u003eOptimized warmth-to-weight ratio for long-distance hiking\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003ebaffled construction\u003c\/b\u003e keeps the 700 cuin RDS-certified down in place even after several days of being compressed in a backpack. The \u003cb\u003eadjustable hood\u003c\/b\u003e and \u003cb\u003ethermal collar\u003c\/b\u003e retain heat at the end of the night, when temperatures often drop lower than expected. The \u003cb\u003ecompressed volume\u003c\/b\u003e makes it easy to pack into a trekking bag. For \u003cb\u003eautumn hiking\u003c\/b\u003e and \u003cb\u003emulti-day trekking sleeping bags\u003c\/b\u003e, this model finds the balance between \u003cb\u003econtrolled weight\u003c\/b\u003e and \u003cb\u003estable insulation\u003c\/b\u003e.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"Leto \/ Standard","offer_id":52833986511185,"sku":"14:10#LETO-Green-Regular;200007763:201336100","price":199.0,"currency_code":"EUR","in_stock":true},{"title":"Leto \/ Lying down","offer_id":52833986543953,"sku":"14:200002984#LETO-Green-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_03.webp?v=1774707896"},{"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-0-degre-aegismax-g2","title":"0-degree (-2°) trekking sleeping bag | 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 Water-repellent 15D IFlex® nylon with DWR\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eCompressed volume:\u003c\/b\u003e 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\u003eThermal performance and compressibility for thru-hiking\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax G2\u003c\/strong\u003e is a technical tool for hikers extending their walking season into the edge of winter. With a certified \u003cb\u003enegative comfort temperature\u003c\/b\u003e, it ensures a secure sleep without imposing the burden of expedition gear. The goal is to maintain a balanced pack weight while guaranteeing rapid warming of the interior as soon as the zip is closed, a major asset for \u003cb\u003ecold bivouacs\u003c\/b\u003e.\u003c\/p\u003e\n\u003ch3\u003ePremium loft and fill stabilization\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e800-fill power RDS-certified goose down\u003c\/b\u003e is stabilized by rigorous internal baffles, preventing the insulation from shifting to the bottom of the bag during the night. This structure eliminates cold spots. Its compressed volume of only 3.3 liters frees up considerable space in your backpack. The \u003cb\u003e15D IFlex®\u003c\/b\u003e shell manages internal condensation perfectly. For hikers facing even harsher conditions requiring a reinforced thermal barrier below -5°C, the robustness of the \u003ca href=\"\/en\/products\/sac-de-couchage-trekking-5-degres-blacksnow\" title=\"See the Black Snow -5°C sleeping bag\"\u003eBlack Snow -5°C\u003c\/a\u003e would logically be the next step.\u003c\/p\u003e","brand":"Ma boutique","offers":[{"title":"G2 \/ Long (up to 196cm)","offer_id":52834517549393,"sku":"14:200006153#G2-black-Lengthen.;200007763:201336100","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"G2 \/ Regular (up to 176cm)","offer_id":52834517582161,"sku":"14:200006152#G2-black-Regular.;200007763:201336100","price":339.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_G2_01.webp?v=1774707501"},{"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-grand-froid-aegismax-g5","title":"Extreme cold sleeping bag (-23°C) | Aegismax G5","description":"\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,768 g (Regular) \/ 1,878 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 -23°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -30°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 DWR water-repellent 15D 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\u003eExpedition sleeping bag for extreme environments\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAegismax G5 extreme cold sleeping bag\u003c\/strong\u003e is a critical piece of equipment designed for mountaineers and winter bivouac enthusiasts. When the thermometer drops below -20°C, there is no room for error. This model utilizes an exceptional density of \u003cb\u003enatural down\u003c\/b\u003e to create an impenetrable insulating barrier, capable of maintaining your \u003cb\u003ebody temperature\u003c\/b\u003e at a safe level throughout the night.\u003c\/p\u003e\n\u003ch3\u003eThermal engineering and elimination of cold spots\u003c\/h3\u003e\n\u003cp\u003ePerformance at these temperatures relies on a strict architecture: \u003cb\u003ebaffled construction\u003c\/b\u003e that prevents the \u003cb\u003eRDS-certified 800 cuin down\u003c\/b\u003e from shifting to the extremities. The anatomical footbox and the ultra-covering insulated hood lock in areas of high heat loss. The \u003cb\u003e15D iFlex® nylon\u003c\/b\u003e shell, treated with a water-repellent finish, effectively protects the down from condensation inside the tent, ensuring constant \u003cb\u003eloft\u003c\/b\u003e during prolonged exposure to freezing conditions.\u003c\/p\u003e\n\u003cp\u003eFinally, if your expeditions involve technical mountaineering at -30°C and extreme gear weight reduction is a matter of safety, the ultralight engineering of the \u003ca href=\"\/en\/products\/sac-de-couchage-grand-froid-moins-30-aegismax-ultra\" title=\"Discover the Aegismax Ultra -30°C\"\u003eAegismax Ultra\u003c\/a\u003e model will allow you to drop below the 1.6 kg mark while maintaining absolute warmth.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"G5 \/ Regular","offer_id":52897975927121,"sku":"14:29#G5-Regular-Blue;200007763:201336100","price":699.0,"currency_code":"EUR","in_stock":true},{"title":"G5 \/ Long","offer_id":52897975992657,"sku":"14:366#G5-Lengthen-Blue;200007763:201336100","price":699.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_G5_01.webp?v=1774707857"},{"product_id":"sac-de-couchage-grand-froid-aegismax-d5","title":"Extreme cold sleeping bag (-17°C) | Aegismax D5","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eWeight:\u003c\/b\u003e 1,768 g (Regular) \/ 1,878 g (Long)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eDimensions:\u003c\/b\u003e 196 × 78 cm (R) \/ 216 × 82 cm (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eComfort temperature:\u003c\/b\u003e -17 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eLimit temperature:\u003c\/b\u003e -25 °C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eFill:\u003c\/b\u003e 650 cuin white duck down, RDS certified\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cb\u003eOuter fabric:\u003c\/b\u003e 15D DWR water-repellent 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\u003eExtreme insulation for demanding winter bivouacs\u003c\/h2\u003e\n\u003cp\u003eDesigned for harsh environments, the \u003cstrong\u003eAegismax D5 extreme cold sleeping bag\u003c\/strong\u003e is a true thermal barrier for expeditions in freezing conditions. Achieving a comfort temperature of -17 °C requires a significant volume of fill, expertly distributed within a snug mummy fit. This \u003cb\u003ewinter sleeping bag\u003c\/b\u003e drastically limits body heat loss, ensuring a secure night's sleep when the cold settles in for the long haul.\u003c\/p\u003e\n\u003ch3\u003eThermal barrier and insulating finishes\u003c\/h3\u003e\n\u003cp\u003eThe effectiveness of this model relies on crucial details: an ultra-enveloping multi-chamber hood, an imposing thermal collar, and a draft tube positioned along the zipper. The \u003cb\u003eRDS-certified 650 cuin down\u003c\/b\u003e maintains its structural integrity even after several days of compression. The \u003cb\u003eDWR nylon\u003c\/b\u003e outer membrane blocks frost and moisture, ensuring absolute reliability of the down in hostile environments.\u003c\/p\u003e\n\u003cp\u003eTo face even more extreme temperatures (-23°C) without weighing down your pack or pulk, transitioning to the premium goose down fill power of the \u003ca href=\"\/en\/products\/sac-de-couchage-grand-froid-aegismax-g5\" title=\"View the Aegismax G5 extreme cold\"\u003eAegismax G5\u003c\/a\u003e model will be the appropriate technical solution.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"D5 \/ Long","offer_id":52897976582481,"sku":"14:100013777#D5-Black-Lengthen;200007763:201336100","price":429.0,"currency_code":"EUR","in_stock":true},{"title":"D5 \/ Regular","offer_id":52897976615249,"sku":"14:200006156#D5-Black-Regular;200007763:201336100","price":429.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/AEGIS_D5_02.webp?v=1774707272"},{"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-ul1100","title":"Extreme cold sleeping bag -21.4°C | Naturehike UL1100","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.59 kg (M) \/ 1.68 kg (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 85 x 200 cm (M) \/ 90 x 210 cm (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eExtreme compression:\u003c\/strong\u003e 24 x 25 cm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFilling:\u003c\/strong\u003e 850 FP white goose down, 95% down, cleanliness 1000mm, \u003cstrong\u003eRDS certified\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill weight:\u003c\/strong\u003e 1005g (M) \/ 1100g (L)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOuter fabric:\u003c\/strong\u003e 10D 500T down-proof nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLining:\u003c\/strong\u003e 10D 500T down-proof nylon\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eZipper:\u003c\/strong\u003e Anti-snag YKK + double elastic drawstring\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComfort temperature:\u003c\/strong\u003e -21.4°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLimit temperature:\u003c\/strong\u003e -31.0°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eExtreme temperature:\u003c\/strong\u003e -58.7°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThermal standard:\u003c\/strong\u003e GB\/T 38426-2019 \/ ISO 23537\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003e850 FP extreme cold sleeping bag for mountaineering and winter bivouacs\u003c\/h2\u003e\n\u003cp\u003eThe Naturehike UL1100 is an \u003cstrong\u003eextreme cold sleeping bag\u003c\/strong\u003e filled with 850 FP white goose down, 95% down, with cleanliness certified at 1000mm and RDS certification. With 1005g of fill in size M, it is designed for bivouacking in challenging winter conditions where nighttime temperatures regularly drop below -15°C. The temperature range is measured according to GB\/T 38426-2019 and ISO 23537 using an instrumented heated mannequin (report ZINK-LAB2410037). The comfort rating of -21.4°C corresponds to a standard female user sleeping in a relaxed position. The limit of -31.0°C is the thermal equilibrium threshold for a male in a curled position. The extreme of -58.7°C is a theoretical survival threshold. These values assume the use of a sleeping pad with an appropriate R-value.\u003c\/p\u003e\n\u003ch3\u003eTriangular baffle construction and closed channels\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003etriangular baffle construction\u003c\/b\u003e distinguishes the UL1100 from standard square-baffle bags. The triangular geometry keeps each chamber at an independent volume with a reduced contact surface, which limits cold spots at the seams and accelerates loft recovery. The channels are fully closed at both ends to prevent any down migration. The 1100g version includes a \u003cb\u003ethermal side wall\u003c\/b\u003e that insulates the sides, a critical point of heat loss during prolonged winter bivouacs.\u003c\/p\u003e\n\u003ch3\u003e10D 500T fabric and triple storage system\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e10D 500T nylon\u003c\/b\u003e outer fabric and 10D 500T lining combine down-proof performance with lightness. The \u003cb\u003eanti-snag YKK\u003c\/b\u003e zipper with double elastic drawstring, integrated thermal hood, and zipper baffle complete the peripheral insulation. Three storage systems: long-term storage mesh bag, transport bag, and extreme compression bag 24x25cm. 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