Under Armour Flow Women's Tank Top Vest Imported Regular Fit - Design to sit loosely on the skin. Ultralight Breathable Fabric - Highly breathable and fast drying with a soft, silky feel for greater comfort. Signature Moisture Transport System - Wicks sweat away from the body, keeping you cooler and drier. UA HeatGear Fabric - Wicks away sweat to keep feet cool, dry, and light.