(As an inner sleeping bag) As with the bed sheet, you can keep the sleeping bag clean without dirtying its own. Machine Washable: Washable and hygienic. Easy to clean! It is machine washable so you can always stay clean and hygienic. (Comfortable Korean Cotton) The Korean cotton is made from eco-friendly fabric, making it more durable than ordinary cotton. The surface of the Korean cotton is 0.01 inch (0.3 mm) villus which is very flexible and comfortable to the skin. It is also perfect for naked sleepers. (Useful in Various Occasions) Recommended as a travel sheet or travel liner for camping, mountain climbing, outdoor activities, touring, emergencies, disasters, sleeping in the car, suddenly overnight overnight, train sleepovers, office sleepovers, business trips, capsule hotels, and easy overnight stays. Product Features: Can also be used as a blanket and other places, such as camping, home, driving, business, hotels, trains, etc. It can keep your body hygienic when sleeping in hotels, using a sleeper or in situations where it is resistant to direct futon. It also has a pillow compartment, so there is no need for a pillow case. Convenient to Carry: Comes with a storage bag. It can be rolled up compactly and folded into the included storage bag. When used as an inner layer in a sleeping bag, it improves heat retention and provides a smooth and comfortable sleep. Fully machine washable. Specifications: Material: 100% cotton; Size: 82.7 x 29.5 inches (210 x 75 cm); *Some product tags may be described as POLYESTER, but they are made of 100% cotton. Storage Size: 8.3 x 8.7 inches (21 x 22 cm); Weight: 13.8 oz (385 g).