80% Cotton 20% Spandex. Free Size regardless of genders. No heel cap turning, so Socks Calf length is adjusted according to the person's feet length. ( Mid-calf Range) Socks Mid Calf Range can be worn with Dress Pants. Material is made with cotton fiber construction, helps to absorb moisture, keeping your feet dry and comfortable. Five toes design produces less friction and allows your toes to align and splay naturally thus more comfortable. Comfortable and Flexible Socks for those with bunions. Five Toes socks gives your foot more space for blood circulation as well