I tried this on using Prime Wardrobe. I was so torn whether I should keep it. I held on to my box for a few days until I could decide. I'm normally a 22 pant (maybe even pushing towards a 24) and a 2X top with a 42D bra. I tried on this dress in a 22W. It was a little too big. On me, it was slightly looser than it shows on the model. If I had gotten a smaller size, I might have kept it, though I'm afraid that would have been too small. It was comfortable, the length was perfect (I'm 5'6), and the blue was beautiful (more of a blue than it looks in the picture, and darker). After much internal debate, I decided to send it back because it fit larger than expected, and I wanted something that fit better for the wedding I was going to.