Fully Supported.. Mid cushion socks target critical areas to create a medium weight barrier between your foot and shoe. Ideal for a range of low to high impact activities, built to withstand each and every stride thanks to Infiknit™ technology for guaranteed durability. Merino Wool Blend: 33% merino wool, 33% polyester, 31% nylon, 3% elastane. 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. Performance Cushioning: Performance Cushioning combines impact protection with comfort to keep you pushing. Channeled Air Cushioning: Breathe easy with the enhanced airflow of our Channeled Air Cushioning. Boot Protection: Boot Protection complements your climb with strategically-placed cushioning. Performance Arch Support: Performance Arch Support fights off strain and fatigue to keep you moving. Seamless Toe Closure: Seamless Toe Closure for an anti-friction finish your feet will love. Performance Mesh: Performance Mesh keeps you cool with maximized airflow and breathability. Medium Cushioning: Moderate cushioning throughout the sock for a secure fit with enhanced impact protection. Crew: A classic sock height that hits the mid-point of your lower leg.