I fanned you back the shirt has no buttons it flows I'd say it fits size 14 and up. I'm 3x and it works but my friend tried it on and she is about 12 or 14 and it fits The selves are like wings they are open.
At first I did not think I had any thing but now that I think about it there are clothes that for no reason I just do not wear some of the clothes in my closet. keep an eye open