Short and low in the ankle, and lightweight for outdoor running and other sports activities, this big six-pair pack of Storm Bloc Performance Trainer Socks are constructed from a performance polyester blend designed to keep feet cool and dry by wicking moisture away. Air movement helps with this, thanks to built-in breathable panels in the uppers. These Storm Bloc socks are lightly cushioned with low bulk padding in the underfoot, toes and heels to ensure functional comfort in trainers without adding too much weight or thickness but still helping protect and reduce fatigue for the feet.