Not really, because the cup size based on volume. It’s not just a matter of adjusting the straps and chest band. So, you can have two women with the same tota

Not really, because the cup size based on volume. It’s not just a matter of adjusting the straps and chest band. So, you can have two women with the same total bust measurement, but very different chest/rib measurements (and therefore very different breast volume). And as breast get larger/heavier, the bra construction has to change to provide support.