Darn Tough Vertex 1/4 Ultra Lightweight with Cushion Black Take on everything from single track training to jeep road crushers in the smooth and ultra-lightweight fit of our redesigned ¼ running sock. Its added ankle coverage sports silky next-to-skin ribbing, with breathable flex zones in the forefoot and fatigue-zapping arch support. FEATURESPerformance Fit: No slipping, no bunching, and no blisters.Fine Gauge Knitting: Unprecedented durability and our uniqueput it on, forget its onfeel.Fast Action Wicking: Pulls moisture away from skin. Fast drying.All Weather Performance: Cool in the summer, warm in the winter.Guaranteed For Life: No strings. No conditions. For life.Merino Wool is fast drying, breathable and odor resistant for all-day comfort.True Seamless: Undetectable seam fusion for an ultra smooth, invisible feel.SPECSSits just above the ankle. Thejust rightheight, 1/4 socks are great for low-cut hikers and running shoes.53% Nylon 40% Merino Wool 7% Lycra® SpandexFor