This is the most awesome shirt! It's comfortable and the sizing is pretty accurate. I'm 5'8 and wear about a 20" bust (pit to pit.) I ordered a large and it's very comfortable with some room to spare. It arrived tied in a knot in the front of the shirt, which is handy if it feels a bit baggy and you wanna add some shape to it. All in all, I'm extremely happy with this purchase!