Pair Darn Tough Men's Run Quarter Ultra-Lightweight Running Socks with your favorite shoes for long-running comfort. These socks provide a snug fit with arch support without extra weight or thickness. They won't bunch, slip or cause blisters, and flex windows provide extra easy movement where you most need it. Made with a merino wool and nylon blend, these socks wick to reduce moisture and heat to keep you cool and dry even during your most intense runs.