Coghlan's Emergency Blanket is an important emergency product to keep on hand in cold weather. Made of aluminized non-stretch polyester, this large blanket will reflect heat back to body and prevent heat loss in colder conditions. The material is intended to stay flexible even in freezing temperatures and is also wind- and waterproof. An ideal product that's used by hikers, campers, and when hunting or fishing. Great to include in an emergency kit or even to keep on hand at the cabin. The Emergency Blanket is compact and lightweight, it weighs only 1.5-ounces. It packs down to a small size that is convenient for transportation, and easily fits into a pocket or backpack.