Military Modular Sleep System 4 Piece with Goretex Bivy Cover and Carry Sack

Patrol Bag: Rated for temperatures 50 to 30°. Reversible double-pull (opens end to end) slider allows top or bottom ventilation. Non-locking slide fastener self repairs if jammed or snagged. Draft flap prevents heat loss; Adjustable Hood. Intermediate Cold Weather Bag: Rated for temperatures 30 to -10°. Sewn insulation does not migrate in the bag. Anatomically designed foot box contains twice the insulation as the bag. Sewn-in, quilted chest collar prevents air drafts up and down through the hood. Hood adjusts for heat retention. Bivy Cover: Made of durably waterproof and windproof 3-layer GORE-TEX® fabric. When combined with Patrol and ICW bags, the system is rated to climates -20; down to -50° with proper clothing. Stuff Sack: Compressible to one cubic foot, six or nine 1" -wide nylon webbing straps adjust by ladder lock buckles. Reinforcement webbing is sewn around the circumference of the bag. Nylon draw cord closure with a barrel lock. Entire system measures 19.5-23.5" in length and just over 10" in diameter.