The US Military Improved ACU Modular Sleep System (MSS) is a sleeping bag system 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 (Foliage) and the Intermediate Cold Weather (Urban Grey). Each is constructed of water-resistant, ripstop nylon. Each sleeping bag is fully functional independently. For a temperature to -30°, insert the Intermediate Cold Weather bag inside the Patrol bag. Each bag is compatible with the vapor-permeable Bivy cover. When all 3 components are used together the system is rated to provide 4 hours sleep at -40°F. Non-flammable and machine washable. Made in the USA by Tennier Industries.

PATROL BAG FEATURES:

 Temperature to +30°

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

DIMENSIONS: 92 x 37' to 92 x 24"

COLOR: Foliage

Weight:  2lb 7 oz

INTERMEDIATE COLD WEATHER BAG FEATURES:

Temperature to -10°

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

DIMENSIONS: 87 x 35 1/2" to 87 x 23"

COLOR: Urban Grey

Weight: 3 lb 10 oz

BIVY COVER FEATURES:

Made of durably waterproof and windproof 3-layer laminate fabric and approved by all departments and agencies of the Department of Defense

Includes snap fastener and slide fastener

DIMENSIONS: 85" x 28" x 35"

COLOR: ACU

Weight: 1 lb 14 oz

STUFF SACK FEATURES:

Compressible to one cubic foot

Six 1"-wide nylon webbing straps adjust by ladder lock buckles

Reinforcement webbing is sewn around the circumference of the bag

Nylon drawcord closure with a barrel lock

DIMENSIONS 30" in length, 14" in diameter

COLOR: Foliage

Weight: 12 oz

SECOND SMALLER STUFF SACK

Foliage

Weight: 8 oz

4-PIECE SYSTEM

NSN: 8465-01-547-2757

All components are manufactured by Tennier Industries