Smart survivalists are prepared for cold emergencies. Picture this: You are hiking and notice that someone has just fallen through the ice. You go to rescue them and they are desperately seeking warmth. Our Mylar foil Emergency/Survival Rescue Foil Blankets retain body heat to prevent hypothermia and frostbite when time is of the essence. Each 84-inch by 52-inch blanket is individually bagged and compactly folded for easy storage and portability. Add these useful foil blankets to your bug-out-bag to prepare for cold environments and rescue situations.