Different brands use different sizing systems — some use US sizing, others use UK, and some use French or European sizing. This means a 34D in one brand may be labeled differently in another, even though the fit is the same.

Before purchasing online, check whether the brand you're interested in uses US, UK, or French sizing. Our website at allurefits.com/fit-facts/bra-size-chart includes a conversion chart to help you find your correct size in any system. If you only know your US size, you can use the chart to find the equivalent UK or French size for the brand you're shopping.

For the most accurate sizing, we always recommend an in-store fitting. Our associates handle size conversions every day and can find your correct size in any brand we carry. Visit any Allure location — no appointment required.