Gone are the days of sports bras remaining hidden under our tracksuits. Fashion houses like Alexander Wang, Prada, and Tommy Hilfiger all sent athletics-inspired looks down the spring runways, so we'd like to think they're rooting for us to show off our active underwear, too. Hey, if Jennifer Lawrence can pull off the style on the red carpet , we can certainly get away with letting our sporty undergarments peek out from under a tank — or more.