Description Up in the sky, the powder is pure. Teeter on the Ridge Line and shred uncharted slopes. Performance Cushioning combines impact protection with comfort to keep you pushing Performance Arch Support fights off strain and fatigue to keep you moving Performance Mesh keeps you cool with maximized airflow and breathability A Reinforced Heel and Toe adds some muscle to help prevent blow-outs Engineered Ankle Protection saves your feet from annoying shoe rub Features Over the Calf Height Merino Wool Blend Medium Cushioning FRESHTEK™ MOISTURE & ODOR CONTROL Fit and Fabric 40% nylon , 30% wool, 27% polyester, 3% elastane