{"product_id":"sac-de-couchage-grand-froid-naturehike-snow-petrel-pro700","title":"Extreme cold sleeping bag -11°C | Naturehike Snow Petrel PRO700","description":"\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eWeight (size M):\u003c\/strong\u003e 1,070 g (bag only) — 1,250 g with storage bag\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComfort temperature:\u003c\/strong\u003e -11.1°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLimit temperature:\u003c\/strong\u003e -19°C\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThermal standard:\u003c\/strong\u003e GB\/T 38426\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFill:\u003c\/strong\u003e 90\/10 white goose down — 750 FP — 660 g (size M)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOuter fabric:\u003c\/strong\u003e 10D nylon with durable water repellent (DWR) treatment\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCompressed volume (extreme):\u003c\/strong\u003e 24 × 25 cm\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e S (\u0026lt; 170 cm) \/ M (\u0026lt; 180 cm) \/ L (\u0026gt; 180 cm)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDown certification:\u003c\/strong\u003e RDS (Responsible Down Standard)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2\u003eHigh-cold down sleeping bag for winter bivouacs and high-altitude treks\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNaturehike Snow Petrel PRO700 high-cold goose down sleeping bag\u003c\/strong\u003e is designed for nights below -10°C: winter mountaineering, high-mountain bivouacs, and 4-season hiking in the Alps or Pyrenees. The \u003cb\u003ecomfort temperature of -11.1°C\u003c\/b\u003e is measured according to the GB\/T 38426 standard. Below the \u003cb\u003elimit temperature of -19°C\u003c\/b\u003e, the bag enters the danger zone: reserved for experienced users who know how to compensate (wearing a down jacket, using a liner). The \u003cb\u003eextreme temperature of -41.8°C\u003c\/b\u003e is a theoretical survival threshold, not a usage indicator.\u003c\/p\u003e\n\u003ch3\u003eConstruction and thermal ratio of the 750 FP fill\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e750 FP white goose down\u003c\/b\u003e with a 90% down ratio and a cleanliness level certified at 1,000 mm (RDS standard) ensures uniform insulation throughout the bag. The structure with \u003cb\u003eindependent diamond-shaped vertical baffles\u003c\/b\u003e prevents the fill from shifting and eliminates cold spots. The thermal side wall and integrated anti-cold baffle limit heat loss at the zipper. The \u003cb\u003e10D nylon fabric\u003c\/b\u003e with DWR treatment contributes to \u003cb\u003ecompressibility\u003c\/b\u003e (24 × 25 cm under extreme compression) but requires precautions: avoid prolonged abrasive contact with the ground or tent walls. In wet conditions, a \u003cb\u003ewaterproof bivy bag\u003c\/b\u003e is recommended — down loses a significant part of its insulating power if wet.\u003c\/p\u003e","brand":"Duvet Nomade","offers":[{"title":"PRO 700 \/ M","offer_id":53234799673681,"sku":"14:200005536#PRO700-M-Orange;200007763:201336100","price":479.0,"currency_code":"EUR","in_stock":true},{"title":"PRO 700 \/ L","offer_id":53234799706449,"sku":"14:100018786#PRO700-L-Orange;200007763:201336100","price":499.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9173\/4097\/files\/sac_de_couchage_naturehike_pro700.webp?v=1772974530","url":"https:\/\/duvet-nomade.com\/en\/products\/sac-de-couchage-grand-froid-naturehike-snow-petrel-pro700","provider":"Duvet Nomade","version":"1.0","type":"link"}