HIGH QUALIY COTTON : Made of 85% Cotton and 15% Spandex,Cartoon socks are comfortable, lightweight, wearable and sweat-wicking. It's gentle on your skin, suitable both for indoor and outdoor activity. SIZE - Length : Cartoon colorful socks are approximately 15-16.5 Inch, suitable for most girls who are 3-12 years old to wear,There are 6 pairs of socks in one. The socks are whether over calf or knee depends on how long your girl's legs are.