Emergency Mylar Blanket 52&quot; x 84&quot; - Pack of 12 Blankets  The Mylar Emergency blankets are developed to reflect heat back to body, or deflect heat when utilized as a shelter from the sun. Prevents post mishap shock by maintaining the client&#x27;s body heat. Keep these Emergency Mylar Blankets in your Auto, boat, motorcycle, first aid set and emergency set - simply in case.