Description Men s compression socks (15-20 mmHg) help reduce fatigue swollen ankles varicose veins. These compression support socks are made of Nylon Lycra and spandex and are machine washable. Men s medium fits shoe sizes 7 1/2-10 large fits 10 1/2-12 1/2 XL fits 13-15. USA. Special men s compression socks with 15-20 mmHg support legs and enhance circulation. Compression socks have graduated pressure at ankle that decreases through mid-calf leg to help reduce fatigue aching feet swollen ankles and vein discomfort. Compression support socks are machine washable nylon Lycra spandex; USA. Specify Size: Medium (7 1/2-10) Large (10 1/2-12 1/2) XL (13-15).