Nike 269605 Pro-Core Men's Long Compression Shorts 9" XXXL 45% polyester Superior technical fabrics provide optimal ventilation and moisture management Strategically designed seams provide enhanced comfort Fabric: Body solid: Dri-FIT, 84% polyester/16% spandex jersey. Body heather: Dri-FIT, 45% polyester/39% nylon/16% spandex jersey.