A thermal foil blanket, also known as a space blanket or emergency blanket, is a lightweight, compact, and reflective sheet designed to retain body heat. It is typically made from a thin plastic film coated with a metallic (usually aluminum) reflective surface.
A disposable ultra-insulating emergency blanket. Both sides have a heat-reflective metallic surface that will retain over 90% of body heat. As well as retaining most radiated body heat it will also protect against wind and rain. Ideal for treating or preventing hypothermia
Emergency warmth: Reflects up to 90% of body heat back to the user
Hypothermia prevention: Common in first aid and survival kits
Weather protection: Acts as a wind and rain barrier
Signaling for help: The reflective surface is visible from a distance
Camping/hiking: Compact and easy to carry for unexpected weather changes
Emergency kit / Thermal foil blanket
Polyester film with a metallic coating (often Mylar)
Silver/gold, sometimes one side silver and the other colored
Usually large enough to wrap around an adult
(approx. 210 x 130 cm)