So. I am 185 pounds, 5 ft 7. My regular bra size is a 36DDD and I got some butt. This dress was tight in the legs, but my boobs hanging out the side is what is making me send it back. I don't know whether to size up to an XL or a 1X because of my breasts. Definitely size up if you are big-breasted, and If your butt is big, size up.