This sleeping bag is filled with Eurekas proprietary 7-hole slickened, polyester Thermashield fiber fill, which provides maximum insulation at the best value possible. Each Thermashield fiber strand contains 7 tunnel-like holes that run the length of the strand. Each of these holes traps air inside its passageway creating dead air space that efficiently retains heat to keep you warm.

Size: 66 by 26 by 18

Fill weight: 1.7 pounds

Carry weight: 2.9 pounds