Hiware Sleeping Bag Liner by, Lightweight Sleeping Sheets, Sheet Liner - Hiking, Camping and Travel Sheet, Sleeping Bag Sheet Liner with Stuff Sack, Gray Polyester - provided with cotton feeling and tencel soft touch Dimension: 86.6"L45.3"W, more space for all sizes, stuff sack:7.9"L7.9"W2"H, weight:1.3Lb It can be used alone as a sleeping bag for separate dirty things, or used as a liner in down sleeping bag. If you ever need a light cover in the summer time, the liner can double as a sheet as well Side opening - The liner has a 38" opening on one side to make you to get into easy. The opening is then closed with button Lifetime Guarantee - If you're not completely satisfied simply let us know and we will offer a prompt refund or replacement, no questions asked