62% polyester/21% nylon/15% cotton/2% spandex wicking yarn * Wicks moisture * Calf length * Heel/toe construction * Contrast color stripe on back * Extra cushioning and support in areas of the foot and ankle that are susceptible to rubbing, impact or injury * Left and right sock construction for a better fit * Arch compression reduces fatigue and aids circulation; sizes: S: 12, M: 9-11, L: 10-13, XL: 13-15