UNIT Mens Pro Flex Sports Tank Reach peak performance in the Pro Flex tank, a new standard of apparel to enhance your every effort at any level of exertion. At the core of the Pro Flex collection is the custom fabric blend that strikes a perfect balance of stretch and softness, with infused tech to ensure cool, dry wearing. A classic, time-tested fit elevated through function and superior fabric - this is the Pro Flex tank. - Regular Fit Sports Tank - 88% Polyester, 12% Spandex - Quick Dry Technology - Left Chest Print - 4 Way Stretch - UPF50+