I’m 5’4”, 150 lbs, 34D with a athletic build and I ordered my normal M size. This dress was perfect! Often I run into issues with dresses because I have wide hips, a small waist and a bust that isn’t wide but protruding. The shape of this dress was very accommodating to my hips, the modesty closure snap in the top gave my busy the coverage needed, and the tie around the waist allowed me to customize my fit.