Our regular cups have been designed to accommodate smaller bust to under band ratios. Our full cups have been designed to accommodate larger bust to under band ratios. If your breasts feel big for your size, you’ve ever been called busty, you’ve had to buy bras from specialist providers or ranges, shirts pop open on you, then go for the full cup. If you don’t have these problems go for the regular cup.If you are looking for a light support lounge bra with a focus on comfort, size up (e.g. from Size 6 to Size 7). Or, if you are looking for greater lift and firm support, size down (e.g. from Size 6 to Size 5).