Campstoor Lightweight Warm Roomy Han Cotton Sleeping Bag Liner, Comfortable, for Travel, Youth Hostels, Picnic &hellip; Han cotton.Refined compression bag saves space Pocket for pillow insert Double stitching and reinforced gussets for long-lasting durability It can be used alone as a sleeping bag for separate dirty things, or used as a liner in down sleeping bag. Keeps you comfortable throughout the night It is suitable for travel, outdoor hiking, camping and business trip