This dress is by JS collections size 12 it was the most comfortable dress I've ever worn. I have worn it three different times and got compliments and rave reviews. It has a built-in bra and full body slip. I put it next to a tape measure so you could see the actual sizes. You can see the tape measures from the top so you'll have to figure it out from the drop waist to the bottom, etc.. You will not be disappointed. You will love this dress.