Big Basin sleeping bags provide the roominess of a rectangular bag combined with the thermal efficiency of a fully sculpted hood. The new Hot TOEmale foot provides the ultimate in comfort. Hot TOEmale features increased foot room from a standard rectangular bag and it's lined in fleece for extra warmth. Built with comfort in mind, the Big Basin Series delivers everytime. Temp Rating: Down to 10? Size: 36" x 85" Fill: 54 oz. Coletherm Cover/Liner: 210T Nylon/Poly-cotton Zipper: Left Zip Pack Weight: 7 lbs. 1 oz. Pack Size: 13.0" x 17.0"