Anyone got a fail safe bra measuring guide and where to buy from? Depending on which store I go to sizes vary greatly. I want some really comfy, stylish sexy bras that fit well with no gaps, bulges etc, Online measuring guides given me numerous different sizes so now even more confused. Did the standard under boob size and over boob measurements. I got 34 under and 40 over but no idea how to convert this to a size or where to get best fits.