This Military Surplus improved bivy cover is designed as the outer layer of the modular sleep system. Made of Gore-Tex, this bivy cover is waterproof, windproof and durable enough to handle even the harshest of conditions. This bivy cover will keep you warm and dry no matter the situation and is a must have for the hunter, survivalist, camping enthusiast and hiker. The heavy duty YKK zippers, which allow you to adjust ventilation, are tough and sure to last for years to come. Use it as an outer layer for the Intermediate or Patrol sleeping bags, or any sleeping bag, to ensure you will be warm and dry on your next excursion. Constructed from Gore-TexGrade 1: Excellent to New/Unissued - All Military Surplus Improved MSS Bivy Covers are US Government Issued products and are rated in excellent to new/un-issued condition. These covers will have functioning zippers, closure snaps, and be free of stains and holes. Bivys may be outside of original manufacturer's packaging but they ...