Made with soft polyester, the outer layer being a diamond ripstop material, the bag is both comfortable and durable. The zippers are sturdy, with no problems in the two years we have used them. Stay cozy even on the coldest nights of your camping or hiking trips with the Everest Mummy Sleeping Bag, +5F/-15C Degree. As is… Continue reading Ozark Trail Oversized 30-Degree Cool Weather Rectangular Sleeping Bag, Gray, 40×80