Forest 20 Degree Sleeping Bag Stuffed with an extra helping of our slumberloft synthetic insulation and equipped with a zipper draft tube Anti-snag zipper protection Draft tube along zipper keeps out cold air and prevents heat loss Durable construction ensures stable insulation over Time Zip together feature allows two same-size rectangular bags to be joined to make a double-wide Temp Rating : 20F , -7C Insulation : Slumber loft Carry Weight: 4 pounds, 14 ounces Fits up 6 feet Rectangle Shape