Product DescriptionThe LyoSoft(TM) Sleeping Bag Liner is made from soft TENCEL(TM) 100% lyocell fabric that feels like your favorite cozy bed sheets while drawing away moisture for comfort during warm, humid nights. Use it on its own or inside a sleeping bag for added warmth and versatility.Key FeaturesSoft & Stretchy Comfort: Made from smooth, flexible polyester knit that allows natural movement while you sleep.Versatile Use: Use on its own during warm nights or attach inside your sleeping bag using integrated snap loops for added warmth.Boosts Warmth: Increases sleeping bag temperature rating by approximately 8-15AdegF for extra cold-weather comfort.Practical Design: Features a drawstring top for adjustable heat retention and a rounded foot box for improved warmth and mobility.Lightweight & Packable: Weighs just 11 oz (carry bag adds 12 g) and packs down small for easy storage and travel.Easy Care: Durable, lightweight, and simple to wash-ideal for frequent trips and long-term use.Technical SpecsBest Use Temperature Boost, Moisture Control, Lightweight PackabilityMaterialLyocellAdded Warmth5-10degFWeight12 ozDimensions72 x 28 inPacked Size7 x 3Pack Size8 x 4