Combining high-tech HeatGear fabric construction and Under Armour's signature moisture transport system, the Ultra Lite Run Double Tab Sock works to wick away moisture and accelerate evaporation so your feet stay cool, dry, and light. ArmourBlock technology helps prevent the growth of odor-causing bacteria, keeping feet fresher longer. The Ultra Lite Run Double Tab Sock is made from a durable blend of 95% nylon and 5% spandex fabric. Two pairs per pack. Imported.