Product Description1.Fabric100% Polyester Lining: 89%Cotton 11%Polyester Filling: 100%Polyester 300g/ hollow fiber2.ROOMYThe size of the flannel sleeping bag is 90.6'' X 35.4'' and incredibly roomy for any adult 7" or less. This wide sleeping bag is great for adults, tall guys, and teens. It can be easily compressed into a 9.8x18.5in the package and weighs only 4.85lbs. This camping sleeping bag is very compact and easy to carry that you can take to any outdoor activities.3.WARMKingCamp cold weather sleeping bag with 300g/m^2 high-loft insulation cotton can make sure it keeps you warm even at extreme temperature 8. This adult sleeping bag fits temperature range 8-44degF ensures that after a tiring day of camping, trekking, hiking or any other exploration you can get a good and relaxing night's sleep.4.FREE COMBINATION Left-side zippers allow the regular sleeping bags to be zipped together with a right-zipper wide bag to create a double bed. KingCamp flannel cotton sleeping bag can unzip into a blanket for car camping.5.COMFORTABLE & DURABLEKingCamp backpacking sleeping bag with flannel Liner is soft and warm, breathable, and skin-friendly. The weaving technology effectively prevents the internal filling from shifting to keep your sleeping bag warm at all times, and the Hydrophobic Polyester Fabric is Water-resistant and rip-stop, it's durable for resisting damage from stones, branches, and other natural elements and keep dry in a humid environment.6.SATISFACTION GUARANTEE We promise to provide every customer with a 100% satisfaction guarantee. If you are not satisfied with the quality of our product, just simply send a message to our after-sale service team and we'll solve the problem for you at once. You get a 30-day return and a 1-year exchange warranty.