Swiss Gear Kitbuel Oversize 20-30 Degree Rectangular Sleeping Bag with Hood (Blue) Two ways to sleep; with hood for 20F temperature rating and without hood for 30 temperature rating. Filled with 3.5 lbs of Swiss-Therm polyester Double Diamond iridescent outer & Brushed polyester Pongee liner Off-set construction 3 inch weatherstrip draft tube and insulated 5 inch shoulder collar all to keep warmth trapped inside