Poly ethelyn terephalate material provides excellent insulation and helps to retain body heat. Approx size: 1.6 x 2.1 metres. Unroll and wrap around the body. Suitable for use after accidents, emergency use during outdoors activities such as camping, hiking and fishing. Also ideal for use after sports activities. Ideal for extreme weather or in freezing or cold conditions. Compact and lightweight, ideal for the car glove-box or first aid kit.