Use in combination with a summer weight bag in colder conditions instead of purchasing a winter bag, or use it alone when nighttime temps are above 60 degrees. Retains up to 80% of radiated body heat. Tougher material on bottom withstands rocky terrain and hard packed snow. Can be opened at the bottom and side to allow moisture and heat to escape. Waterproof and windproof. 36"×84" (unpacked), 8"×5.5" (packed), 6.5 oz.
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