Science Purchase Emergency Mylar Thermal Blankets (5 Pack) Size: 52″ x 84″ Mylar Material Reusable Long lasting Helps retain body heat in emergencies Developed for use by astronauts, these emergency survival blankets are lightweight, compact and have many uses. Mylar can retain 90% of your body heat and can be used as ground cover or a shield from the elements. Not only can these be a life saver by providing warmth, but they can also be used […]

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