A space blanket (also known as a Mylar blanket, emergency blanket, first aid blanket, safety blanket, thermal blanket, weather blanket, heat sheet, or shock blanket) is an especially low-weight, low-bulk blanket made of heat-reflective, thin, plastic sheeting.

Are space blankets made of Mylar?

Space blankets, also referred to as Mylar blankets, keep your body warm by reducing heat loss. These blankets are made from sheets of metalized impermeable plastic material that reduce up to 90% of heat transfer from the body.

What material are space blankets made of?

Space^® brand blankets are made with metalized polyester, which is only capable of reflecting 80% of radiated heat. Survive Outdoors Longer's emergency blanket reflects 90% of radiated heat back to you.