Front Sock: 71% cotton, 16% nylon, 11% polyester, 2% spandexBack Sock: 58% cotton, 23% polyester, 17% nylon, 2% spandex Machine wash cold Slip-on styling Knit socks Ribbed hem 2 pairs Made in South Korea Our Style No. PLAU-MA230 Manufacturer Style No. 899500PK