Im usually 34A. But got  36B and ot does its job. I have just bought another one exactly the same! I cant spend an hour without it. Comfy cotton touch. Would be nice tho to have more color options. Also this bra cost 14 plus 8 for shipping. Dont be fooled! Get it cheaper here at Amazon! Search for QT soft bra and you will buy it for 13 and shipping free!!!!! Thats what I did with the second one I got! Nice bra!