Love this top! i'm 5'7, 145 pounds, athletic build, and the medium falls slightly loosely and very nicely over my hips. it is quite low cut, so i wear a tank under it in a professional environment, but it's fine to wear sans tank top in a more casual setting. i really love the back, as the straps are sexy and show off my shoulders. the material seems to be good quality, and i would order this in more colors if it were available!