I ordered the 3X because I'm top heavy. If you are plus size with smaller breasts...you may be able to go down some sizes because the bigger the size...the longer the dress so if you don't have enough fluff on your body lol...to lift it off the floor...it may end up being too long. You can always create knots on the bottom of the dress on both sides. It creates a cute look at the bottom but whatvit really does is keep it from dragging. I didn't have this problem with this dress myself. It fits nice. I did put a pin at the top to keep it closed. However a tank top will do the job. It's long and very comfortable.