Big Agnes Grouse Mountain 15F / -9C Down Mummy Sleeping Bag
A technical down bag for those who prefer the performance of a mummy bag. Integrated half pad sleeve with unique design keeps you securely attached to the pad from the hips up while allowing freedom of movement for your legs, more like a traditional mummy bag. Never roll off you pad again. 70" YKK #8 zipper. Mate together any of Big Agnes' left and right zip bags with the same size zipper. Shell: Down proof, nylon microfiber rip-stop. WR surface treatment to repel water. Lining: Soft, breathable down proof nylon with stain resistant finish. Pad sleeve: Nylon rip-stop. WR surface treatment to repel water. FlowTM Construction: Insotect FlowTM is a flow-optimized insulation system that delivers uniform heat distribution and natural body contouring through its revolutionary baffle design. Flow Construction eliminates lateral and vertical down shifting by using vertical chambers with Flow Gates to regulate fill positioning and density. Strategically placed Flow Gates minimize vertical down shifting while vertical chambers minimize lateral shifting. With continuous vertical Flow chambers in place of traditional side seams, Flow bags eliminate potential cold spots which can occur with side seams. Vertical baffles now flow with your body for more rapid and uniform body heat distribution.