The Under Armour Performance Tech 3pk Qtr socks are designed for athletes who want comfort and performance. These socks are made with a blend of polyester and elastane, providing a comfortable fit and a breathable feel. The socks are also quick-drying, so you can stay comfortable even during intense workouts. The 4-way stretch fabric allows for a full range of motion, so you can move freely without restriction. These socks are perfect for a variety of activities, including running, training, and everyday wear.