These football socks, made of cotton + spandex blend, work great for kids between 5 ans 12 years of age. Unstretched sole length is 6.3 inches / 16 cm, stretched sole may be up to 4 inches / 10 cm longer. Sock ankle length is 13.4 inches / 34 cm. Recommended kids height is 39-55 inches / 100-140 cm. Package includes 3 pairs of sport socks.