I am 5'6", 105 lbs. and normally wear a 34C or 36C depending on the manufacturer.  The only reason I gave the bra 3 stars instead of 5, is that not only was the C cup too big for me a don't think I'd be happy with the B cup either.  The bra, as is pictured, is very low cut and trying to adjust it higher does not work.

If you are looking for a low cut bra this otherwise good quality bra will be right for you.