Growing Socks Baby Girls" Socks, Ballerina Shoe, 4-Pack: * Socks that grow as kids" feet grow * Care: machine wash cold inside out in cold water; tumble dry low; use only non-chlorine bleach when needed * Fabric content: 70 percent cotton, 20 percent nylon, 6 percent polyester, 3 percent spandex, 1 percent rubber