US Military Warm Weather Sleep System: Patrol Sleeping Bag and Water Resistant Bivy Cover GENUINE, AUTHENTIC, OFFICIAL, U.S. MILITARY ISSUE, GORETEX, 2 PIECE, MODULAR, SLEEPING SYSTEM A GREEN PATROL BAG, RATED TO 30 DEGREES F GORETEX BIVY COVER. WATERPROOF, BREATHABLE. NON-FLAMMABLE