The 90% heat-reflective Emergency Blanket is made from a vacuum-metalized polyethylene, resisting rips and tears so that it will not shred if nicked or punctured. It is waterproof, quiet and won't crinkle in high winds, while the high-visibility orange helps rescuers find you in all terrains. Product Features 90% Heat Reflective Emergency blanket reflects 90% of body heat to prevent heat loss and provide life-saving warmth. Lightweight & Durable Ultralight blanket is crafted of tear-resistant vacuum-metalized polyethylene and will not shred like mylar when punctured. Waterproof & Windproof Protection from the harshest outdoor elements. Multipurpose Blanket Blanket can be used as a camping gear tarp, sleeping bag, and much more. High-Visibility Orange The bright orange color allows rescuers to spot it easily. Product Specifications Dimensions: 56 x 84 inches Weight: 2.9oz