Cotton,Sherpa Eco-Conscious: Made with 100% post-consumer-recycled Ecotherm fill Spacious: Big and Tall size fits campers up to 6’5”; roomy 84” x 40” dimensions Versatile: 2-way zipper opens to cool feet and can zip two bags together for double the room Heat Retention: Thermolock draft tube helps prevent heat loss through the zipper Convenience: Handy interior pocket for keeping small items close at hand Cold-Weather Comfort: Cotton, Sherpa lining provides warmth in frigid temperatures Imported: High quality and built to last. INTERIOR POCKET: Keeps small items like keys and cell phones close at hand BUILT TO LAST: 5-year limited warranty ROOMY COMFORT: 84” x 40” size