Be prepared for an emergency with this Coghlan's emergency bag. The foil bag is designed to help prevent or treat hypothermia in case of an emergency. It works by reflecting body heat back into the body. It is also great for use in sheltering against rain and wind. The bag is 84 inches long and 36 inches wide (233.3 cm x 91.5 cm), and it weighs 2.6 ounces (73.7 g).