The Heavy Duty Emergency Blanket is an ultra-versatile, all-purpose emergency shelter designed for use in the harshest terrain and conditions. Weighing in at only 7.9 oz, this 5&'; x 8&'; shelter packs down to a pocket sized package yet can withstand almost any abuse you can throw at it. Wind & waterproof and 90% heat reflective, the Heavy Duty Emergency Blanket will keep you warm and dry and is tough enough to survive multiple adventures. 2 1/2 Times ThickerStrength to Rig into a Tarp 2.5 mil,compared to 1 mil blankets, Super HeatsheetsA(R) fabric is waterproof and windproof and will withstand high winds. Keeps You WarmReflects 90% of radiated body heat to help keep you warm. 100% wind and waterproof to shield you from the elements. Unmatched VersatilityCan be used as an emergency blanket, ground cloth, gear cover, emergency shelter or whatever suits your needs.