US Military 4 Piece Modular Sleeping Bag Sleep System MSS w/ Bivy Woodland Camouflage. No hole, cut, stain or repair, nice and clean, very good to excellent condition. Genuine US GI, Military Woodland Gortex 4pc. US MILITARY ISSUE 4 PIECE SLEEP MODULAR SLEEP SYSTEM. ITEM INCLUDES PATROL BAG, INTERMEDIATE BAG, WOODLAND CAMO PATTERN BIVY COVER AND STUFF SACK. STATS ARE AS FOLLOWS. Water resistant ripstop nylon. 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. INTERMEDIATE COLD WEATHER BAG FEATURES. Water resistant, ripstop nylon. 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 draw cord and barrel lock. Waterproof and windproof 3-layer laminate fabric. Includes snap fastener and slide fastener. Compressible to one cubic foot. 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. SEE PICTURES FOR SPEC NUMBER, SIZE AND DETAIL.