These sport socks are suitable for US shoe sizes 8K-13K(4-7 Years old),1-5 (8-11 Years old) and shoe sizes 6-10(12-16 Years Old),They can hold up the shinguards well. These athletic socks are perfect for sports such as Soccer,Softball,Baseball,Football,Basketball,Yoga,Running,Hiking,Climbing etc. These sport socks are made of cotton, polyster and spandex,they are soft, comfortable and flexible to wear.And these socks provide cushing system at the bottom which will make your feet comfortable even in the fierce games! These socks are soft,breathable and thick enough to protect your feet, and they can provide supports around your feet and ankle with the compression design in these areas. These socks can be washed by washing machines.These socks hold up well after repeated washings These knee high socks are suitable for US shoe sizes 8K-13K(4-7 Years old),1-5 (8-11 Years old) and shoe sizes 6-10(12-16 Years Old),They can hold up the shinguards well. These soccer socks are perfect for sports such as Soccer,Softball,Baseball,Football,Basketball,Yoga,Running,Hiking,Climbing etc. These sport socks are made of cotton, polyster and spandex,they are soft, comfortable and flexible to wear.And these socks provide cushing system at the bottom which will make your feet comfortable even in the fierce games! These socks can be washed by washing machines.These socks hold up well after repeated washing