Coleman Big Bay 20 Mummy Sleeping Bag 5% Open Breathable performance fabric which boasts Rope Breathable performance fabric which boasts exten sive Quick Dry features 20 11 7 (h x w x d) cm semi sculpted hood helps lock in heat J zipper for ventilating footbox on warmer nights Sleeping bag packs into compressible stuff sack Thermolock draft tube prevents heat loss through the zipper ZipPlow patented zipper design prevents snags so bag is easy to open and close Cozy Foot soft fleece footbox and Comfort Cuff material for softness and protection around the face Dimensions are 32 x 79 in Coletherm MAX Insulation provides superior heat retention in temperatures as low as 20°F