Stay dry, stealthy, and protected in any environment with the Tennier Industries GORE-TEX Bivy Cover, a key component of the U.S. Military Modular Sleep System (MSS). Engineered for all-weather field operations, this bivy cover forms the outer waterproof shell that shields your sleeping bag from rain, snow, and ground moisture while maintaining full breathability. Constructed from durable 3-layer GORE-TEX laminate fabric, this cover is fully seam-taped and fitted with a heavy-duty zipper and snap-closure storm flap for reliable protection. It’s compatible with both the Patrol and Intermediate Cold Weather sleeping bags, allowing you to create a complete 4-season sleep system. Includes the small compression stuff sack, making it easy to stow in a ruck or bug-out bag. Perfect for camping, tactical training, survival kits, or emergency preparedness, this is genuine U.S. Military surplus — built to perform wherever you rest your head.