I am 32 years old, 5'6, with a 34D/36C chest, and hourglass shape, and wear a standard size 8 in all brands. I purchased a Small in this shirt. I have struggled for years to find shirts that have enough room for my large chest, but still go back in towards the waist. This shirt does all those things and more! I bought a Small, and cried when I put it on; the fit is perfect. I look as small as I actually am without all that excess fabric hanging off my chest. The U neck hits at the perfect point on my chest to make this shirt both appropriate for work (I'm a teacher and bend over a lot!) but also perfect a date night with my husband. The bodice on this shirt is GENIUS. Please, please make this in more colors, like navy, caramel, and green. I'd buy every single one! The shirt is a little expensive, but worth it for the custom tailored feel when you put it on. Black is not sheer at all.