6 Pairs excell Over the Knee Thigh High Referee Socks for Ladies Size 9-11 70% acrylic Thigh High / Over the Knee Socks Sock size 9-11 fits Women's shoe size 5-11 70% Acrylic, 20% Nylon, 10% Spandex Great Boot Socks excell is a USA registered trademark. Please make sure that you received item(s) from excell.