Puma GWS Expedition

Puma GWS – Gore Infinium™ Expedition Mountaineering Sleeping Bag For serious winter mountaineering, high-altitude expeditions, and Arctic conditions, the Puma GWS delivers the ultimate combination of warmth, weather protection, and durability. Whether you’re climbing frozen waterfalls, chasing untracked powder in remote alpine basins, or braving the Brooks Range in mid-winter, the Puma GWS is built to perform where other bags fail. With 37 oz. of premium 850+ fill power ethically sourced goose down, this bag achieves 9 inches of loft and a -25°F (-32°C) temperature rating—making it one of the warmest mountaineering sleeping bags available. A 64″ shoulder girth provides ample room to layer insulated clothing, store essential gear, or accommodate larger body types without compressing loft. The Gore Infinium™ shell offers exceptional water resistance, windproof protection, and breathability, while critical warmth-sealing features like the Reverse Differential Hood, full down-filled collar, and dual interlocking draft tubes are completely constructed from Infinium™ fabric for maximum cold-weather defense. The footbox is reinforced with 2.4 oz. fabric to protect against abrasion from stowed gear. At just 3 lbs 15 oz (1,780 g), the Puma GWS packs expedition-grade warmth into a manageable weight, making it ideal for mountaineers, ice climbers, ski tourers, and polar explorers who demand reliable insulation in the harshest environments on Earth.