This military modular sleep system bag is one of the inner sleeping bags for the Modular Sleep System (MSS), but can also be used as a sleeping bag by itself to give you a lighter load while hiking. It is water repellent so it will protect against light moisture and is designed to be used cold temperatures. The snaps will easily snap into its partner, the outer patrol bag (Patrol bag not included). This modular sleep system bag is equipped with a drawstring hood for added warmth and has a heavy duty side zipper. May be machine laundered on a gentle cycle. Unused Condition. MADE IN THE U.S.A.