Fit and Design: Performance fit running socks 2.25" low cut height achieves the ideal balance of protection and style Made with merino wool to provide thermoregulation, sweat management, and odor resistance Light Elite cushioning in the ball and heel provides targeted support and enhanced protection without adding bulk Mesh ventilation zones provide optimum moisture management and maximum breathability Technology: Indestructawool(TM) technology features a construction method that achieves exceptional durability and comfort 4 Degree(TM) Elite Fit system offers a dialed, performance-oriented fit with a flex zone at the ankle joint to keep your socks in place Virtually Seamless(TM) toe incorporates smoothed out toe seams for ultimate in-shoe fit and comfort Additional Details: Machine wash warm, inside out Do not bleach Tumble dry low Do not iron Do not dry clean