Like it's partner jacket, the Grumman Goose Down Pant was strategically designed to reduce weight and maximize packability for backcountry hunts. Stone Glacier has found down hunting pants to be a game-changing piece of gear in adverse conditions. However, many of the products available did not pack well or were nearly impossible to take on and off in the field. Thus, they frequently got left at home. They set out to create a pant with a full-length zip that could pack small enough to remain virtually unnoticed in the pack until used. With 850+ fill power, HyperDRY down insulation and a Pertex Quantum shell textile these pants provide an unbelievable warmth to weight ratio. Add a real full-length side-zip that can be completely opened up at the waist hem and cuff and you now have a truly functional down insulated bottom. Use these once for a long glassing session on top of the mountain, and you'll never again leave home without them.