3 Piece Sleeping System Features:

• This system is constructed to insulate the user in environments ranging from mild weather to extremely cold weather.  The system consists of two Mummy-style sleeping bags--the Patrol (Green) and the Intermediate Cold Weather (Black).  Each are constructed of water-resistant, ripstop nylon.  Each sleeping bag is fully functional independently.  For a temperature to -30 degrees, insert the Intermediate Cold Weather bag inside the Patrol bag.  Each bag is compatible with the vapor permeable bivy cover (MIL-C-44307).  When all 3 components are used together the system is rated to provide 4 hours sleep at -40 degrees.  Non-flammable and machine washable
• Patrol Bag features:  Temperature to +30 degrees, 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, hood adjusts for heat retention; includes nylon drawcord and barrel lock, measures 92 x 37" to 92 x 24", green
• Intermediate Cold Weather Bag Features:  Temperature to -10 degrees, free from cold spots, 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, includes nylon drawcord and barrel lock, measures 87 x 35 1/2" to 87 x 23", black
• Bivy Cover Features:  Made of durably waterproof and windproof 3-layer fabric, Includes snap fastener and slide fastener, measures 76 x 35" to 76 x 23", Woodland Camo