Slumberjack Log Cabin 40 Degree Hooded Sleeping Bag Regular Shell Fabric: 100% Cotton Liner Fabric: 100% Polyester Insulation Type: 100% Polyester Fiber Imported Temp Rating : 40 / 4C Insulation: Slumberloft Synthetic Weight 4lb 14oz Oversized side panel for a roomier more comfortable fit Flip Over Hood allows user to flip the hood inside out for the option of a flat hood or contoured hood