The Emergency Blanket XL features vacuum-metalized polyethylene that reflects 90% of your body heat. The blanket opens easily and will not shred if nicked or punctured, is quiet and won't crinkle in high winds, and a high-visibility orange exterior makes it easy for rescuers to find you. Sized to fit two people. Features and specifications: Resists tearing and will not shred like mylar blankets. Vacuum-metalized polyethylene material is waterproof and windproof. Reflects 90% of radiated body heat. A true ultra-light multifunctional backcountry tool that can also be used as a ground cloth, gear cover, first aid blanket, and more. Dimensions: 58 x 98 inches Weight: 3.2oz