Technology developed in the space program to provide maximum warmth with minimum weight Made from extremely tough polyester rip-stop material Retains up to 90% of body heat Bright surface can also be used to reflect light for miles Weight: 10 ounces Stansport Sportsman's Polarshield Emergency Blanket is made from extremely tough polyester rip-stop material for maximum durability. This technology was developed in the space program to provide the maximum warmth with minimum weight.
