As a precaution I (Gr 38/40.) The dress ordered in L - and that was just right. M probably would have been too narrow. Especially the sleeves they are rather tight. The dress is very beautiful, not too short, the cut is not too deep. The color and the cut are slim fit and slim. The pattern is unobtrusive. It is advisable to wear a petticoat, as the substance is a bit transparent. Highly Recommended!