I usually wear a size 36/38, I then in blouses but still have the problem that they gape over the bosom, I have ordered these equal in size 40 ... and it fits. Another positive aspect is that it does not, like many others in 40 to fluttered her waist, but she makes around a beautiful figure. The fabric is soft and easy to iron, but quite transparent. So either wear a white bra or similar under a sweater