The TravelSheet Silk RipStop is soft against your skin and responds well to changing temperatures it feels cool in the summer and is warm in the winter. TravelSheets made of silk are easy to hand or machine wash and dry quickly. Woven with a grid like structure of strong silk threads, Ripstop Silk is more durable and resistant to tearing than regular silk.TravelSheets keep your sleeping bags clean and they are much easier to launder than your whole sleeping bag. Washing just your liner will keep your bag from excessive wear and tear, but with the ability to easily wash the TravelSheet, you can always sleep clean and comfortable. Sleep with the peace of mind that only comes from the knowledge that you are sleeping free from dirt and germs.