The 3 Season Sleep System is lightweight, compactable and waterproof is available in coyote 497/498.
Sleeping Bag - The sleeping bag is made with a light weight compactable batting that provides a minimum 5.3 CLO rating, allowing the user to sleep comfortably in temperatures above 20°F. When used with the IBC, a ground insulator pad and proper clothing, intermittent use down to 5°F is achievable. This bag is also produced with an anti-microbial inner liner that helps to protect against the growth of microorganisms that can be dangerous to the user.
Improved Bivy Cover (IBC) - When fully encapsulated in the IBC, the user is provided maximum environmental protection. The waterproof IBC is also made of a micro-porous (gas permeable) laminated fabric with sealed seams that allows the user to sleep fully encapsulated without respiratory distress in adverse conditions -40°F and above.
The Mesh Bag - This bag allows the components to be stored in an open environment with little compression and maximum ventilation.
Waterproof Autopurge Compression Stuff Sack (WSS) - One of the four components of the Three Season Sleep System (3S) The WSS provides waterproof storage of the Sleeping Bag and Bivy Cover and will fit into the bottom of the Improved Load bearing Equipment (ILBE) main pack. Waterproofing is achieved by the stuff sacks fabric, bag construction and closure design. The bag is constructed utilizing Radio Frequency fabrication, with no sewn seams for maximum waterproofing. The smooth internal and external surfaces facilitate packing. Volume reduction is accomplished by the shape, hands-free waterproof air purge value and two compression straps for end to end length reduction. The individual weights for the components of 3 Season Sleep System is as follows: