Canvas,Cotton,Flannel Imported BUILT TOUGH: Durable 6.3 oz cotton canvas sleeping bag shellwith built-in anti-snag zipper will withstand your most rugged adventure. STAY WARM: The warm flannel lining retains body heat and is soft and cozy, to make your outdoor experience a little more like home. OVERSIZED: Big and tall design accommodates most campers. STORAGE: Sleeping bag features integrated packing system and is easy to roll – attached buckles make transport and storage foolproof. BUILT-IN POCKET: Internal built-in pocket is made to store and secure small personal items. Stay comfortable and warm in the Bushnell 30F Canvas Sleeping Bag. Featuring a durable, yet soft flannel liner, this canvas sleeping bag is rugged and tough for outdoor use, without sacrificing comfort. The Bushnell 30F Canvas Sleeping bag was made with anti-snag zipper for easy in and out. Our big and tall design provides wiggle-room for most campers, and the built-in storage straps mean easy storage and transportation.