For camping in temperatures between 40°F and 60°F. The warm weather bag fits heights up to 5 ft. 11 in 3 lb. of ThermoTech insulation Polyester cover with soft tricot fiber blend liner ComfortCuff surrounds your face with softness Roll Control fasteners lock bag in place for easier rolling Fiberlock prevents insulation from shifting, increasing durability Thermolock draft tube reduces heat loss through the zipper, keeping you warmer ZipperGlide tailoring allows smooth zipper operation around corners QuickCord no-tie closure keeps bag cinched tight Machine washable