The ASP Down Winter offers maximum comfort in minimal temperatures and dry conditions. The sleeping bag features stretch inserts in the knee area to allow greater freedom of movement, a great benefit for people who prefer to sleep on their side or with retracted legs. The stretch down-proof fabric allows natural movements and makes the sleeping bag feel amazingly comfortable. From hiking to multi-day ski tours, the ASP Down Winter with 90/10 premium goose down and a fill power of 700 cuin offers excellent warmth to minimal weight and packing volume ratio. The design of the sleeping bag is inspired by the legendary ASP snake, hence its name. A sleeping bag that sets new standards in design and function.