Copy of Fitting_MF – Beija London
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  • The bras
  • The briefs

X bra

Sized S,M,L soft non-wired bralette styles. Designed for smaller cup sizes AA - C.


y bra

For B- D cup sizes, underwired and comfortable to enhance your natural shape.

designed for: b - d cups

z bra

For DD-H cup sizes, clever construction, technical fabrics and extra support for the larger cup.

designed for: DD - H CUPS

I'm not sure on size,
what can I do?

  • Online Bra Fitting

    Free, secure and personal.
    Book your appointment today.

  • Find your fit quiz

    For this you will need a rough
    idea of your bra size to calculate your bra size.

  • in store bra fitting

    We have a beautiful shop in King's Cross for you to try on, safely and hygienically.

The UK leads the way when it comes to bra sizing, particularly in the DD+ category. Beija bras are in line with all the major UK retailers. We recommend you purchase the same size as your best fitting bra or the size you were last time you got professionally fitted.

The FAQ’s

How does the online fitting work?

Watch a video explaining everything -

Beija's online fittings are with a member of our team of professional, experienced bra fitters. As bra fittings are best done by eye, we ask that you have on a bra that you either feel comfortable in, or fits well. At no point will you be braless! Our bra fitter will check the fit of this bra, have a chat to you about any fit issues, and discuss which Beija styles & sizes to try. It takes just 20 minutes. You do not need a tape measure. Your safety and data is of utmost importance to us and we take it very seriously therefore the chat link is totally protected and secure.

What makes the fit of your bras special?

They are designed specifically for the needs and requirements of your cup size thanks to our unique X,Y,Z sizing categories(R). Nothing extra and nothing less. Our bras are for you! They are 'wearer' tested on women of all different, shapes, sizes and comfort preferences. Our intention with our designs is to give a natural lifted shape that looks good under clothing or peeking out from the top or side. Comfort of course is key. The fabric we use is carefully sourced from suppliers we have worked with for a long time, always exceeding quality and performance tests. Our bras are designed to last. Look after, love and cherish your underwear - it's the closest thing to your skin.

Can I be in more than one category?

If you are on the Y/Z border, for example you wear a 32D, 34D or 36D, your sister size is a band size smaller but a cup size larger, so a DD, DD+ cup size places you in the Z category and a D cup size or smaller places you in the Y category. So you can in fact wear either if you prefer the styling on one more than the other!

It's worth noting, many women wear both Beija X and Y Bras. If you like to wear a wire one day and not the other, there is nothing stopping you. You can see which sizes crossover categories by following this link here

What sister bra size am I?

If we don't stock your size or something you have your eye on is sold out in your size you are welcome to try the sister size. This is based on cup volume. See the sister size converter here. Find your typical size and look to the right of it on the chart - this is your sister size - here.

What if it doesn't fit?

If you live in the UK returns are free both ways. If you are outside the UK you need to pay the postage of that item coming back to us and will need to make a new order for the item you are after. 

In the X Bra, am I a Small, Medium or Large?

32 band is a Small, typically UK size 8. 34 band is a Medium, typically a UK size 10 and 36 band is a large, typically a UK size 12.

Can I return the briefs if I have tried them on?

Yes you are welcome to try on over your briefs. However be careful, if there are any single signs of wear they will be rejected by our warehouse due to health and safety.