Amazon.com : Military Modular Sleep System 4 Piece with Goretex Bivy Cover and Carry Sack : Sleep Back Gore Tex : Sports & Outdoors
Marine Corp 3 or 4 Season Sleeping Bag with Option Gore-tex Bivy Cover
Amazon.com: Tennier US Army Military Woodland Camouflage Camo GTX Goretex Sleeping Bag BIVY Cover by US Government Industries GI USGI NSN 8465-01-455-6274