I am a 32B and usually a small in tops but I got the US6/M for extra coverage at the top. The top would fit a 32-34B well - any smaller and the top would be loose and any larger there would be less coverage showing more underboob. The top is lined and padded well with silk sashes attached at the back. I am 5'4 and the sashes reach all the way to the ground even when I wrap them around myself so this is a great top to wear with heels if you are 5'4 or shorter. I love the color of the silk and the design of the top is so flattering!!