Texsport 40 Degree Caprock Sleeping Bag Fill: 100% Polyester, Lining: 80% Cotton/ 20% Polyester, Outer: 100% Polyester Imported COMFORT RATING 40 Adult Sleeping bag 33" x 75" FULL TWO-WAY #5 ZIPPER. Opens Flat, Machine Washable OD Polyester Outer Shell, and Gray Polyester/Cotton Liner with 3 Lbs. of INSULATION Quilt-through construction PREVENTS INSULATION FROM SHIFTING, extending life of your sleeping bag Two Elastic Roll-Up Straps Attached for EASY AND COMPACT STORAGE