These performance wristbands are made from moisture-wicking HeatGear polyester, which wicks sweat away to keep you cool, dry, and focused. They feature the Under Armour logo and come in a pack of four. 100% Polyester. Moisture-wicking HeatGear fabric?ÿ. Under Armour logo. Pack includeds 4 wristbands. One Size Fits All. Spot clean. Imported.