Ultralight and compact silk sleeping bag liner for backpacking, camping, and travel Made from luxurious, premium AA Grade, ripstop silk with comfort stretch panels along the side Increases the thermal performance (by adding a few degrees of warmth), and extends the life of sleeping bags Provides hygienic bedding and peace of mind when traveling in hotels and hostels; machine washable and colorfast Rectangular liner measures 73 x 37 inches, packs down to 4.5 x 4 x 3 inches in included storage case, and weighs 4.6 ounces The Sea to Summit Premium Silk Travel Liner gives you the luxurious feel of premium AA Grade silk, made even more comfortable by stretch panels along the main seams. This super lightweight, easy-care compact package is great for travel. It offers the peace of mind of clean, hygienic sheets wherever your travels take you or extends the life of your sleeping bag by reducing the number of times it needs to be washed. The unique Comfort Stretch Panels allow the liner to move with you when you sleep. Double folded and reinforced seams for strength. Includes a convenient zippered travel case. Machine washable & colorfast.