Stay cozy when sleeping in the cold with this Sea to Summit Trek Down Long 30°F Sleeping Bag. It is made with a 650+ fillpower duck down with a non-PFAS Ultra-Dry Down treatment to help keep you drier in damp conditions, and the sleeping bag features a recycled 20D polyester shell with a non-PFAS DWR finish to block wind and moisture. Sea to Summit Trek Down Long 30°F Sleeping Bag Light Blue - Famly/Tech Sleepn Bags at Academy Sports