Emergency Blanket, is also called Mylar blanket, first aid blanket, space blanket, safety blanket, thermal blanket, weather blanket, heat sheet, or shock blanket, made of a thin sheet of plastic (often PET film) that is coated with a metallic, reflecting agent, making it metalized polyethylene terephthalate (MPET). Mylar blanket is usually gold, silver, Army green or black in color, which reflects up to 97% of radiated heat. First aid blanket is an especially low-weight, low-bulk blanket made of heat-reflective, thin, plastic sheeting.

Emergency Blankets are designed to reduce the heat loss in a person's body, which would otherwise occur due to thermal radiation, water evaporation, or convection. Safety blankets low weight and compact size before unfurling make them ideal when space or weight are at a premium. First aid blanket may be included in first aid kits and with camping equipment. Lost campers and hikers have an additional possible benefit: the shiny surface flashes in the sun, allowing its use as an improvised distress beacon for searchers and as a method of signaling over long distances to other people.

Emergency blankets are included in many emergency, first aid, and survival kits because they are usually waterproof and windproof. That, along with their low weight and ability to pack into a small space, has made them popular among outdoor enthusiasts and emergency workers. Space blankets are often given to marathoners and other endurance athletes at the end of races, or while waiting before races if the weather is chilly.
Material: PET foil with Aluminum coated
Color: Golden, Silver, Army green or black Size: 210CM X 160CM, 200CM X 140CM, 200CM X 100CM, 38 X 60 (96CM X 152CM)
Foil thickness: 20um
Weight per M2 : 17.5g/ M2 (16-18.6g/ M2)
Size after folding: 8.5cm x 13.5cm ±0.5
Tensile tension: 180Mpa in lengthways; 180Mpa in horizontal Heat resistant: for 7 days up to 85 and 1 day at -20
Wind and waterproof
The airtight foil reduces convection
Heat loss caused by evaporation of perspiration is reduced
The reflective surface inhibits losses caused by thermal radiation
Stays flexible in freezing temperatures and reflects body heat inward helping to prevent the onset of hypothermia
Essential survival gear for emergency preparedness
The Emergency Blanket is small, lightweight, and compact for easy transportation