This is my third top from this designer, and normally i wear a small, but i tried this on in the store and the medium fit much better on me. i am not partial to the black as the knot design was lost, but the sapphire is wonderful. works great with slacks or more casual clothes. i liked the sleeve length as well. i'm not too busty, but i think that other reviews comments of the knot being see through could be a problem.