Add warmth to your sleeping bag with the Sea to Summit Silk Blend Compact Mummy Sleeping Bag Liner! A blend of Thermolite Pro insulation, recycled Thermolite EcoMade insulation, and silk delivers luxurious comfort that'll make it easy to catch Zs at camp. Thermolite Pro features hollow fibers with permanent ceramic pigments that absorb the body's infrared rays and reflect them back to you, so you can stay warmer for longer. Thermolite EcoMade sports fibers made from 100% textile waste, are GRS-certified, and offer the same lightweight warmth you want. Practical shoulder openings help you regulate temperature through the night. HeiQ odor-fighting technology keeps the liner fresher between washings. Fits campers up to 5'10" tall.Manufacturer model #: A3241. 72% polyester/28% silk Warm liner for mummy sleeping bags Blend of Thermolite Pro insulation, Thermolite EcoMade insulation, and silk for luxurious comfort Thermolite Pro absorbs your body's infrared rays and reflects them back to you Thermolite EcoMade sports fibers made from 100% textile waste and are GRS-certified Practical shoulder openings help you regulate temperature HeiQ odor-fighting technology Fits campers up to 5'10" tallSpecs: 72.4"L x 31.5"W Packed: 4.7"L x 2.4"W x 3.1"H Weight: 4.6 oz.