Knitted fabric with particularly quick-drying ArmourDry® yarn - so your feet stay cool and dry. ArmourDry® yarn distributes moisture evenly and accelerates evaporation. Mesh ventilation inserts at the top and bottom of the foot for breathability in key areas. Ultra-thin, lightweight construction for a barefoot feel. New close fit ensures your socks don't slide down. Midfoot support prevents foot fatigue. Close-fitting heel contours around the foot for a better fitKnit fabric with extra quick-drying ArmourDry® yarn - so your feet stay cool and dryArmourDry® yarn distributes moisture evenly, accelerating evaporation