Light and warm, some of the warmer sleepers at A.M.H. have slept comfortably in -40 F weather in this bag. This would be our bag of choice for routes like the Cassin on Denali or for long winter treks when the temperature does not dip into the frightening range. Those of you with above 48" chests may wish to find a larger bag. If you sleep warm this bag is sufficient for all Denali expedition but the extra measure of safety found in the Bison may be worth the extra cash and weight.

Western Mountaineering Puma SDL

Sleeping Bags **Expedition Bags** Bison - Down Dark Star - Synthetic Puma - Down Tundra - Synthetic **4 Season Bags** Antelope - Down Snowshoe - Synthetic Night Light - Synthetic Night Delight - Synthetic Superlight - Down **3 Season Bags** Cats Meow - Synthetic Goliath - Synthetic Dream Machine - Synthetic Dreamweaver - Synthetic Moonlight - Down Sweat Dreams - Synthetic