Material: Wool / Cotton / Spandex. Size: Our thigh high socks measure 18.9 (no streched) (heel up to top of the socks). Fits women US size 5-11. Suitable occasions: knee high socks fit for daily wear, good match with mini skirts, shorts sports, school,athletic activities, cosplay, Halloween party. The over the knee high socks are warm, these knee high socks are cozy and great to wear while lounging at home or while hanging out at night. These thigh high socks are made of a nice blend of cotton & strechy yarn, which is very breathable and stretchy.