New York and Company Stretch dress size M

I purchased the dress as a size medium. However, I am bigger on bottom and smaller on top, so I got it altered. With that being said, it is not an authentic size M. It does give a little stretch. It is a little body hugging. The length of the dress is 44 inches long and from pit to pit it measures 13 inches. I wore this on 2 occasions. There are pictures where I’m wearing it for reference.