TCK USA Pro Performance Socks Show your patriotism with these TCK USA Pro Performance Socks. They will keep your feet dry and comfortable all day. Designed for professional athletes, the key features of these socks will make you wonder why you didnt try them sooner. Features: 85% polypropylene, 8% nylon, 5% elastic and 2% Lycra® spandex blend Moisture Control with TCK proDRI Blister and Odor Control Fabrics Antimicrobials built-in Arch Compression Zone Breathable Mesh Ergonomic Cushioning for Comfort Double Welt Top for a Stay-Up Fit Heel/Toe Design Made in the USA