Darn Tough Men's Run No Cushion Ultra-Lightweight Casual Socks - Take on everything from single track training to Jeep road crushers, in these smooth and ultra-lightweight fit running socks. The added ankle converage sports silky next-to-skin ribbing, with breathable flex zones in the forefoot and fatigue-zapping arch support. Quarter-height design Ultra-lightweight Pairs best with running shoes, trail runners, or athletic sneakers Performance fit means no slipping, bunching, or blisters Flex windows mean less material where your foot needs to move to most so nothing interferes with your stride 53% nylon/40% Merino wool/7% Lycra spandex Style: 1034