Mountain Trails Sycamore 30 degrees Extra Long Sleeping Bag (33 x 77-Inch, Orange and Silver) Shell;: 100% Polyester Liner Fabric: 100% Polyester Insulation Type: 100% Polyester Fiber Imported Fill; 4Lbs of non-allergenic InsulTherm polyester Outer and Liner constructed of quilted Polyester material Made with a self repairing coil zipper and can form double sleeper with two like bags together 30 degrees Farenheit 2 bundling ties for easy storage. Machine washable