36" x 85" spacious interior accommodates individuals up to 6.4' tall, ensuring a comfortable sleep Coletherm insulation ensures warmth even in lower temperatures of 40 degrees Fahrenheit (five degree Celsius) Contoured design and adjustable hood offer a snug headrest, boosting comfort and warmth Features Cozy Foot fleece footbox and Comfort Cuff around face for warmth and enhanced protection J-zipper allows for footbox ventilation on warmer nights Thermolock draft tube minimizes the heat escape through the zipper for efficient heat retention ZipPlow patented zipper design eliminates snags, facilitating easy access Compressible stuff sack facilitates fast packing and convenient storage