Bra Sizing

There is no single global bra-sizing standard, and band sizes can vary between brands. Our cup sizes run from A to G, and we use the traditional sizing method, where your underbust measurement is not the same as your band size.

Some of our bras, including the Bullet and CC09, have very limited stretch in the band. Please check the band measurements in each product description before ordering.

If our band sizes are smaller than the brand you usually wear, you may need to sister-size: go up one band size and down one cup size. For example, a 36D cup is the same as a 38C cup. The chart below shows examples of sister sizing. The band size changes across each row, while the cup volume remains the same.

Sister Sizing

Sister Size	Sister Size	Your Usual Size	Sister Size	Sister Size
32F	34E	36DD	38D	40C
32E	34DD	36D	38C	40B
32DD	34D	36C	38B	40A
32D	34C	36B	38A

Get Fitting Help

If you are still unsure, please contact us and we will do our best to help. It is useful to provide:

Your Favourite-Fitting Bra

Tell us the brand, style name and size of your best-fitting bra. It is also helpful if you can measure the band for us.

Your Underbust Measurement

Measure your underbust firmly, as tightly as you would usually wear your bra.

Your Overbust Measurement

An overbust measurement, taken around the fullest part of your bust, does not provide much useful information on its own because it does not account for breast-tissue distribution or how you prefer your bra to fit.

Click the 'Shop Bras' button below to explore our full collection of Vintage Inspired Bras and search by your size.