When gear matters most, trust your life to a expedition-grade sleeping bag rated for extreme subzero temperatures. To achieve such an elite level of protection, this bag uses premium goose down with an incredible 800-fill-power rating. This ensures that the down is highly compressible and exhibits an exceptional warmth-to-weight ratio. Body-Mapped Anti-Compression Pads create an insulating buffer between you and the ground with synthetic, continuous filament Climashield Prism insulation that is far more resistant to compression than down. This system prevents heat loss in the critical high-pressure areas that are frequently in contact with the cold ground (head, torso, feet), providing up to 13% greater efficiency than other sleeping bags. Trapezoidal baffles, positioned with their parallel sides opposite one another, ensure a constant baffle volume that holds the down in place and prevents cold spots. Ergonomically curved vaulted footbox ensures sufficient space for your feet to flex and move naturally. This promotes continued blood circulation to the lower extremities while eliminating dead air space, keeping you warmer. A down-filled draft collar seals in warmth around the head. Imported. Comes in 2 sizes, regular and long.