The MidwayUSA Military Style 4-Piece ECWS Modular Sleeping Bag System is the ultimate military inspired sleep system. Based on a proven design, this system includes an inner (intermediate) bag, outer (patrol) bag, waterproof bivy, and compression sack. This sleep system is highly adaptable and will have you covered throughout a wide range of temperatures and conditions. The core of this system is comprised of the intermediate (black) and patrol (green) bags, which can be used independently or together to create a dual layer of protection in extreme conditions. Both bags are constructed from a durable nylon ripstop and feature adjustable draw-cord hoods and draft collars around the zippered openings. For additional protection from wind, rain, and snow, attach the waterproof bivy to complete the system. This highly modular and affordable sleep system is perfect for your next outdoor adventure. FeaturesComplete sleep system includes patrol bag, intermediate bag, waterproof bivy and st...