Yes, this shirt runs a little big. I'm usually a Small (size 2) in tops, and this Small is generously sized. It's a loose, casual top. However, I think I will keep this size, as the back fits just right (like, when I cross my arms together in the front, the back is tight). Also, I got the Raffia color, which is really nice, but it is a bit see-through. The pleating in the front helps with coverage.