First Aiders Choice Emergency Thermal Blanket will help treat anyone suffering from shock and hypothermia, designed to retain body heat | Aluminium film blanket | Useful in retaining body heat | Useful in the treatment of shock and hypothermia | | GENERAL INFORMATION INTENDED PURPOSE | Made of metalized polyester film which reflect over 90% of reflected body heat, it can wrap over the body and against cold, wind, rain and heat.