Keep your sleeping bag dry with this waterproof bivy cover. Part of the Military Modular Sleep System, it covers the Patrol and Intermediate Cold Weather sleeping bags. Constructed of durable waterproof and windproof 3-layer GORE-TEX® fabric About 85" x 28" x 35" Sealed seams for water and heat retention 2-way YKK® zipper Mummy hood for total protection Fits military ECWS, intermediate and modular bags Genuine US Military Issued Made in USA NSN: 8465-01-547-2644 Genuine Issue Gore-tex® Waterproof ACU Camouflage The Waterproof GORE-TEX® Bivy Cover is produced utilizing waterproof, moisture-vapor-permeable material with all seams heat sealed. A component of the Military Modular Sleep System, the Bivy is designed to cover the Patrol and Intermediate Cold Weather sleeping bags and fit into the compression stuff sack.