Polyester Eco-conscious warmth to 50°F, made with 100% post-consumer-recycled shell, liner & Ecotherm fill ZipPlow zipper design prevents snags so bag is easy to open and close Thermolock draft tube helps prevent heat loss through the zipper Roll Control keeps the bag straight, making it easier to pack up Quick Cord secures the rolled-up bag without tying Handy interior pocket keeps small items like keys and cell phones close at hand Built-to-last construction; 5-year limited warranty Roomy 33" x 75" size