The SOL Escape Bivvy is nothing less than a Revolution in Backcountry Shelters. The complaint with most Ultra-Light Emergency Shelters is the same: Condensation Builds-Up-Inside as you get Warm, leaving your Clothes Soaking Wet. With the Escape Bivvy, Condensation is No-Longer-an-Issue, and you never again have to choose between Staying Dry and Staying Warm. The Proprietary Fabric lets Moisture Escape at the same time that it keeps Rain, Snow, and Wind on the Outside - all while Reflecting your Body Heat Back-to-You. The Space Age Polyethylene Coated with a Vapor Deposit Aluminum Material if Punctured will not Run and can be Easily-Repaired with a piece of Duck-Tape. The Heat-Reflective Polyethylene Reflecting 90% of your Body Heat back to you. The SOL Escape Bivvy with its Waterproof Seams plus a Drawstring Hood Closure and Side Zipper mean you can Seal-Out the Elements-Entirely or use the Bivvy like a Traditional Sleeping Bag. Ideal for your Fishing, Camping, Hiking or any other Exciting Expeditions, the SOL Escape Bivvy offers the Warmth-and-Protection you need. The OD Green Bivvy measures 36" x 84" (91.4cm cm x 213.4cm), an ideal size for a Backcountry or Emergency Shelter and is lightweight weighing in at 8.5 oz (241g).