I bought the 2X because of my 37" waist. It fits just right from the waist down. The bust is meant to fit a 46-48" bust, but my bust is 10" small than that. I am pear-shaped, so I buy clothing accordingly. I will take the dress to my seamstress to have it taken in on the sides of the bust to fit my 36b bust. As for a bra, a strapless bra suits me just fine; it does not show on the sides at all. I love the lining in the bust area, and the fabric overall is sturdy (for lack of a better word- just trying to convey the fabric is not sheer or flimsy). The dress does have minimal stretch; well, in my opinion, it does not have stretch. That works for me, though. I love the pockets! Woohoo for pockets! And having the matching belt helps cinch me in and lets me look like I come close to having an hourglass figure, instead of a pear shape. Thanks for the Labor Day sale, PUG staff!