The size is men's shoe size 10-13. These ankle socks for men are made of combed cotton, which can quickly absorb moisture and release sweat. Mesh design in the arch can keep your feet dry all day. These men's running socks with the cushion on the sole and toe are made of moisture-wicking yarns, which provide ultra comfort, and absorb impacts on the feet during activities. The seamless toe design can eliminate friction to prevent blisters. These men's athletic socks with a proper band designed in arch keep ankle socks in place. The elastic band holds these men's sports socks tightly around your ankle to prevent slipping off when you move.