- Tested by an independent third-party lab using European Norm protocol, the EN temperature ratings allow direct comparisons across brands with other EN-rated bags
- Insulated with superior European 800-fill-power goose down, blended and lab-certified in the United States
- Warmth is optimized through differential cut of shell and lining fabrics, allowing the goose down adequate room to expand to its full loft
- Performance mummy cut features a snug overall fit that positions the down insulation close to the body, maximizing warmth and minimizing weight without restrictiveness
- High-tenacity nylon shell is lightweight and tear resistant; fabric is treated with a Durable Water Repellent finish to repel moisture
- Box baffle construction maximizes loft and minimizes weight; 5 in. baffle width keeps down from shifting, so cold spots are prevented
- Tuck-stitched baffles (sewing method that keeps all threads hidden) prevent threads from snagging and breaking
- Multi-baffled, tailored hood lies close along the sides of neck and face for easy warmth
- But when it's cold enough to cinch down the hood, the down-insulated face gasket snugs comfortably and holds in warmth
- Ergonomic draft collar drapes comfortably over neck and shoulders, blocking the escape of heat and sealing out drafts
- Shape of Multi-baffle Comfort Foot Box allows feet to rest naturally; it also preserves loft and allows down to drape close to feet for warmth
- Full-length, 2-way zipper with locking sliders stay in place when bag is partially unzipped for ventilation
- Insulated draft tube with antisnag panel extends to bottom of bag to eliminate cold spots along zipper
- Insulated zipper gusset seals in heat at base of zipper
- Comes with mesh storage sack and stuff sack
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
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