Surface Material: 190T Anti-tearing Polyester Lining Material: 190T Polyester Filling:Hollow Cotton Imported COMFORTABLE MATERIAL: The surface material of the sleeping bags for adults is made of waterproof and breathable polyester, and the filling material is hollow cotton, which is very soft. After hiking, backpacking and outdoor adventure activities, the camping sleeping bags can provide you with a super comfortable sleeping environment. USED FOR 4 SEASONS: Our sleeping bag can keep warm in various outdoor activities in spring, summer, autumn and winter. Rated temperature 41℉--77℉(5℃--25℃), which allows sleeper warm even at 40℉(4℃), comfort temperature is 63℉--75℉(17℃--24℃). The sleeping bag for camping also adopts a weatherproof design to keep warm under cold conditions. This is achieved by double filling technology. EASY TO CARRY AND CLEAN: Each sleeping bags is equipped with a travel-friendly compression bag. The rolling control design can pack the backpacking sleeping bag in a very short period of time, making folding and storage convenient and fast. Camping sleeping bags can be wiped clean by hand or machine washed. PRACTICAL DESIGN: The double zipper slider allows you to open the bottom of the sleeping bag in warm nights and make your feet move with the wind. You can even open the camping sleeping bag completely and use it as a blanket. The sleeping bags for adults ensures the circulation of air, allowing you to enjoy a comfortable sleep. FOR INITIAL USE & SERVICE: Once you receive the sleeping bag, remove from vacuum -sealed packaging. pat and shake to restore loft Air out several hours for full fluf. We are committed to providing high quality products and service. If you are not satisfied for any reason, please contact our customer support, we will do our best to assist you. This sleeping bag is designed for both adults and kids, ideal for family camping trips, hiking, tent stays, and indoor use. Crafted with soft fabric, it delivers a comfortable touch for restful sleep, while the lightweight design makes camping sleeping bags easy to carry in backpacks or car trunks. It comes with a compression bag for compact storage, fitting perfectly into outdoor adventures or casual indoor needs. Suitable for warm & cool weather, it balances practicality and coziness—great for all your indoor and outdoor activities without extra bulk.