A mummy type sleeping bag that is easy to transport and store in a backpack. Baffle shaped construction for efficient heat distribution. 600 Downtek 2 Bags can be zipped together for extra warmth. Interor loops allow for a liner to be used. (not included) Exterior loops allow for hanging up to dry Carry and storage bag included Anti-snag lockable zipper Specs: Fabric:  Exterior is made from recycled ripstop polyester, water repellent Lining: Recycled polyester taffeta with water repellent finish Down:  Natural 600 downtec Weight:  2.70 pounds Dimensions (folded)  9.05" x 20.08" Length:  6'6" long Comfort temperture 20 degrees F.