Western Mountaineering · Sleeping Bags
The Bison GWS Expedition Sleeping Bag is rated for -40°F to keep you warm in extreme cold. It features GORE-TEX INFINIUM fabric that is windproof and water resistant. Lofty down insulation provides heat retention and compressibility. The mummy shape, draft collar, and offset tubes prevent cold air entry. A full-length two-way zipper allows ventilation.