Backed by rigorous lab testing, the Brooks Maia sports bra works with your body-not against it. Brooks sent the Maia to the Research Group in Breast Health at the University of Portsmouth for biomechanical testing in their lab. The findings showed the Maia reduced breast motion by 65 percent, which means a more comfortable and supportive sports bra for you. The body of the medium-impact sports bra is made from a 80 percent nylon, 20 percent spandex fabric, but the cups use a 100 percent polyester fabric for its softness and sweat-wicking ability. An underwire supports each breast individually for a locked-in fit, and padded straps help distribute pressure evenly across your shoulders. The secure, supportive Brooks Maia will help you conquer any workout in comfort.