Pure Compression No-Show Cushioned Running Socks with Coolmax Fabric - Hidden Sport Socks Made with CoolMax Fabric: The Pure Athlete No-Show Running Socks are made with special CoolMax Yarn that keeps feel cool and dry. Breathable: The athletic sock features strategically placed breathable zones that help to keep feet well ventilated and prevent them from overheating. Cushioned Sole:The no-show hidden sock features an ultra-soft cushioned sole to make it the most comfortable running socks you will ever wear. Tab to Prevent Slipping into Shoes: The no-show running socks feature an advanced tab at the top back portion of the sock that prevents it from slipping or sliding into running shoes. 100% Satisfaction Guarantee: We know these will be the best no-show running socks with CoolMax Fabric you will ever wear. We guarantee it If not fully satisfied for any reason, simply send back the socks to Amazon within 30 days for a full refund.! Made of 85% Polyester, 8% Nylon, 7% Spandex