Designed to be worn with flats or high heels. These socks are unique because they have a keyhole cutout at the top of the foot, which allows the wearer to keep their socks hidden while still providing coverage and protection for their feet. They are made of 32% coffee charcoal/48% rayon/18% nylon/2% spandex. The plus size fits calves 17” or larger at widest point and fits shoe sizes 5-12.