I love this jumpsuit and definitely feel too confident in it! the fabric is a great weight- flowy, but still substantial enough. with nude undergarments, i can't see anything. in fact, that is one of the things i love; no special undergarments are required, so it is very comfortable and still very flattering. i typically wear a medium- 135 pounds, 5'4", 34b, 28 waist, 40 hip. i tried the small after seeing some reviews that it ran big. i would have bought it, but the salesperson suggested i try