I am normally a 2X (allowing size for boobs/stomach) I ordered a 3X/4X (just to be safe!) And it was too small, this item also fit like a large or extra large. I actually ended up busting the fabric on the back trying to get the item on.
I got 4 items in my order, 2/4 items fit small. (It happens)
Would have been cute if I could have sausaged into it. (haha)