<ul> <li>High cotton content allows for sweat absorption while spandex provides comfort and flexibility</li> <li>Low cut to be hidden in sneakers and casual shoes with a silicone finish inside the heel allows the sock to hug your feet and not slip off</li> <li>Flatter seams</li> <li>This model is a US shoe size 10 1/2 and is wearing a sock size L</li> </ul>