POC Sports Motion MTB SocksThe Motion Sock is made for mountain biking. With extra cushioning under the foot, the sock gives comfort and support exactly where it is needed. The breathable, moisture wicking sock uses a strong knit to enhance durability and protection, and gives good coverage of the ankles and lower shin. Heel and toe reinforcements add durability. Breathable Your feet can breathe easily all day long. The soft yarn wicks moisture away to keep you feeling dry.