Over the Calf - Hitting right below the knee, this height covers the entire lower leg. Infiknit™ Lifetime Guarantee - Our Infiknit™ technology never rips, never tears. Made for good. But if you’re turbo-gnarly and rip one, we got you. Mid Cushioning - Ski Merino Wool Blend. Performance Cushioing - Combines impact protection with comfort to keep you pushing. Performance Arch Support - Fights off strain and fatigue to keep you moving. Engineered Ankle Protection - Saves your feet from annoying shoe rub. Shin Protection - Provide valuable protection where you’re most vulnerable. Anti-Bunch Ankle - Keep socks from scrunching under your boot. FEEL360 - Infused premium twisted yarns with FEEL360® react to eliminate -causing bacteria.