The KingCamp sleeping bag with flannel Liner is warm and skin-friendly. The weaving effectively prevents the internal filling from shifting to keep your sleeping bag warm at all time. The Hydrophobic Polyester Fabric is Water-resistant and rip-stop, it's durable for resisting damage from stones, branches and keep dry in a humid environment. Plus,this adult sleeping bag has widened in size and increased physical activity space. The zipper can be fully opened and used as a blanket or quilt. Temp rating: 9