For hot days when you cower in fear of the thermostat but still have to hit your training mileage, there's the Under Armour HeatGear Tech Lo Cut Sock. Lightweight HeatGear fabric wicks away sweat to keep your feet dry and comfortable, while built-in ventilation channels deliver enhanced breathability. It also has strategic cushioning for comfort and flexibility, dynamic arch support to reduce fatigue in your foot, and anti-odor technology to keep these socks fresh for longer.