80% Cotton, 20% Polyester Zipper closure Machine Wash POLYESTER/COTTON BLENDED FLEECE: X-2 Men’s Active Athletic Tracksuits Sweatsuits are made with Polyester Blended Cotton. Finest Fleece fabric Content is 80% Cotton & 20% Polyester. Polyester is blended with Cotton for a number of reasons related to the cost, performance, Washability, and color-fastness, ability to hold dye of the fabric. On the flip side, Polyester is not breathable and Cotton is, so by blending the two, you can get a fabric that is both breathable and sweat-resistant. STAND COLLAR, ZIP UP CLOSURE & HAND POCKETS: X-2 Men’s high quality two piece tracksuit or sweatsuit set has Zipper Closure Jacket with Stand Collar and Pant with drawstring. Featured with full Zipper Top and easy pull on Pants.