Travel Sheet Sleeping Bag Liner (Gray, 84 x 27 inch) Liner protects and keeps your sleeping bag clean, and can add up to 5 degree fahrenheit to the temperature rating of your sleeping bag Use it alone in warmer climates or when spending the night in a hostel; silk feels cool in the summer Hand or machine wash the liner with mild soap; drip dry or tumble dry on low Side zipper for easy access 84L x 27W inch