Recycled eco polyester wicks moisture and is soft against your skin. Spandex arch panels add support and hold socks in place. Spandex knit throughout ensures form-fitting stretch, no sagging and no bagging. Cushioned soles. Flat toe seam. 65% recycled polyester, 33% nylon, 2% spandex. Made in USA. Sizes: M, L. Colors: Black, Brown, Olive, Taupe.