Black sleeveless dress

This is a black sleeveless dress which is an xl.seems like more of a med/l its on the smaller side. (In my opinion, it seems like you need a little bit of a bigger chest to fill out the front bc it dips down) it has a zipper on the side and goes down to my calf(i am around 5'4") it's very flowy and in the back has a flippy collar. It is in excellent used condition.Comes from a smoke-free but dog friendly house. thanks