I'm an adult dancer...5 feet 5 and a half inches and weigh 123 lb and I am not large chested. I do have a longer torso. My girth is 60 inches. I ordered an adult size M based on the sizing chart. I would need to be 4 inches shorter or have a girth of about 56 for this leotard to fit. The back did not fit to the contour of my lower back It stood away from my body because the body of the leotard was too short. If I went up a size, the bodice would be too wide around my body and not tight enough to provide any support, even for someone slightly flat chested. This leotard is beautiful but is way too short for their sizing chart. The fabric was nice but felt a little more delicate and thin...not what I was expecting from such an expensive leotard. Very disappointed. If you have a short torso or can wear Natalie leotards, then this is the leotard for you.