I'm a 34DD and wear a size L in Wear Moi. I really like this brand because their leos are fitted but still leave enough room for my bust; I think it's because I'm short-waisted and Wear Moi leotards are designed for girls with longer torsos than mine.
I chose this leo primarily for the lace detailing, and at the last moment decided to get it in the Rose color. It's very beautiful, but the shade of pink is a touch deeper than I was expecting. The overall design is very nice, but typical of Wear Moi, the straps are too long, which causes the lace part in the back to look a bit weird. Again, this is mostly because these leos are designed with a longer, leaner body shape in mind. It's a minor problem that I'll probably fix with a quick stitch or two.
Im 5'6 110 pounds and got a medium thinking that it will be a bit big on me becuase i am in between sizes, I got this leo in a black and a china blue. When I recived these leotard, I instantlu fell in love with the design of the lace. When i tried it on, it fit snugly with the exeption of the straps that were way to long causing the leo to drop down way to low. For a self conciense person like me low leotards are not the best. Since im still growing :( ill keep the leotards. Other than that the lace is really pretty and stylish.