It is estimated that over 90% of women are wearing the wrong size bra. Bra sizing may appear complicated but in fact, as long as you understand some basic rules, it's pretty simple. It is important to remember that the band size and cup size of a bra always work together. A ‘DD’ cup size is not always a larger cup capacity than a ‘D’ cup – it depends on the band size. In fact, a 34B cup has the same cup capacity as a 32C and a 36A – the only thing that is different is the band size. It is essential that you choose the correct band size AND cup size if you are to be properly supported in your bra. If you need some help determining your size go to our help page.