Nike Dri-Fit Cotton Cushioned Crew Socks, XL 12-15, 970-White/Cyber/Gray 59% polyester Imported Dri Fit fabric Pulls away sweat to help keep you cool and comfortable. Dynamic arch compression adds a supportive fit around the foot Left/Right specific design for a better fit FABRIC: Dri-FIT 59% polyester/25% nylon/13% cotton/3% spandex X-Large: Men's 12-15