Designed with thermoregulating fibers, Infiknit™ reinforced heel and toe, performance mesh for breathability, ultralight cushion for comfort, and graduated sport compression for recovery to keep you moving. Features: -Over the Calf Height -RWS Wool -Ultralight Cushioning -FRESHTEK™ MOISTURE & ODOR CONTROL -Infiknit™ Durability -Performance Cushioning -Channeled Air Cushioning -Performance Arch Support -Seamless Toe Closure -Deep Heel Pocket -Performance Mesh Fit and Fabric: 59% nylon, 34% merino wool, 7% elastane