50% polyester 35% nylon 15% spandex Machine wash cold, tumble dry low. Pack of 2 pairs heavy cushioned ankle socks featuring left/right arch support, ankle compression with protective terry and breathable mesh on the top of the feet. The paddded bottom is designed based on the different shape of human’s left/right feet to provide best support, protection and shock absorption Absorb and wick sweat quickly to keep your feet dry all the day. With high quality nylon and spandex, the socks have great stretchability. They fit men’s shoes size 6 to 11 and Women’s shoes size 7-12.