When I first received this shirt, I thought, “they must have sent the wrong size.” But no, it was an xsmall. I don’t think this style runs big, I just think it’s meant to fit that big. I typically like more form fitting tops. But if you like flowy tops with a lot of extra room, this one’s for you! The fabric is a nice sweat wicking fabric, so that’s a plus. I actually did try and tie the sides up and that made it fit a little more snug. But overall, I would not buy this top again.