Finding your true bra size today ❤️

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Ondermaat BH meten
My band measurement:
Bovenmaat BH meten
My cup measurement:

My bra size is

75 C

Marks & Spencer BraFit Tips »

Bras for small breasts | Guide

  1. What is considered a small bra size?
  2. Cup AAA and AA bras
  3. A cup vs B cup
  4. Why many Petites wear the wrong bra size
  5. How do we really feel about our breasts?
  6. Teen bras, buying your first bra
  7. Triumph bras aa cups
  8. The best bikini’s for small busts

Having smaller breasts can make you feel you’re one of the few with small boobs. Well, your not. Personally, I think we could fill up a whole new planet with us petite.

1. What is considered a small bra size?

picture of a woman in a bra in a small cup size

Some people call cup A small, some might even say the same about a B or C cup.

Check your size in my bra calculator
of visit M&S for advise and size chart

measure tape bra size uk

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It depends on your perspective. Boobs come as small as they like, it’s what nature is all about.

Luckily, during the last 10 years, designers started making bras in smaller cups than the A cup we’ve known for a long time.

Dobreva Front Closure Push Up Underwire Bra AA – DD cups | See details at

In the media boobs only seem to get bigger. It may be so, but in reality, there are lots of women with smaller boobs. Lots. No woman is the same. Women’s breasts come in all shapes and sizes.

2. Cup AAA and AA bras

There is no such thing as breasts being too small. There’s a bra for every woman. Please know that cup A isn’t the smallest cup size available. Read all about the cups AAA and AA and where to shop!

Zoe Push up bra AAA, AA and A cups | See

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3. A cup vs B cup

Well, just a little change in your measurements could mean a different bra size for you to consider.

woman in a white bra adjusting band size
Different bra sizes can actually be very close

For women with smaller breasts, it is important to realize that small cup bras can be very close in size.

You cannot just say that a B cup is bigger than an A cup because when changing your band size down or up so will the cup volume. Read more about cup volume here

4. Why many Petites wear the wrong size bra?

  • like any woman, it can have become a habit to stick to something that is no longer good for us, like a badly fitted bra
  • we settle for the bra size that we are used to wear for years now, thinking this must be the best there is for us
  • having small breasts, there is a bigger chance of choosing the wrong size because of the lack of knowledge and information in shops and on the internet
  • most bra size charts have not listed the smaller cups (always check a small bra size chart)
  • because we have small boobs we to avoid lingerie stores
  • the stores usually do not carry the smallest cup sizes and we get easily suggested a wrong size as well (and end up with a bra that is too big)
woman holding a bra in left hand

A well-fitted bra will give confidence and make your clothes look better.

Maybe you’re happy with the bras you wear. That’s great. For many years I certainly could not call myself a bra lover. Having a petite bra size didn’t help (until I found the right size and brands that do have AA and AAA cups).

I believe in a well-fitted bra for every woman, whether she needs a petite, medium or plus-size bra. My calculator will help you find your true bra size.

5. How do we really feel about our breasts?

I want to mention the work of Laura Dodsworth. She published the book Bare Reality, an amazing book about women and their breasts.

Laura spent two years photographing and interviewing 100 women about their breasts, bodies, and lives. Women from all walks of life took part, aged from 19 to 101, sized AAA to K, from a Buddhist nun to a burlesque dancer.

3-minute Video ‘Bare Reality’

The book and this video are the best, and really for everyone to watch, both men and women. You’ll find her books on Amazon

6. Teen bras

From collection First Bras M&S | See details at

Teen bras are different from bra tops because teen bras have actual cups in their design. The cups might be padded and may also have a wire in them. Teenage bras start from cup AA and will go to B, C, or D cups.

Read more on how to buy your first bra and check out some great teen bras.

7. Triumph petite bra collection

triump bra small cup

Triumph collection Petite | See details at

Triumph is one of the lingerie companies that also have a collection of bras in AA cup. That’s very good news for petite women with this cup size.

The Triumph petite bras collection is specifically designed for the smaller proportion figure type – maximizing the petite shape.

8. Bikini tops for small busts

You may want to wear a bikini top with no padding at all. Or maybe you want the opposite and create the maximum of cleavage with a push-up gel bikini top.

See my selection of 5 bikini styles for the smaller busts.

9. Plunge bras for low cut tops and dresses

A plunge bra is a must-have bra for lower necklines. Why not make it one of your favorite feminine bras? There’s a pretty style for every mood see all 10 styles

Having doubts about your bra size?

Try my bra calculator or check out the M&S Bra Fit Finder and see your recommended bras.

My bra guides

How to measure your bra size »
Bras for large breasts »
All my blogs »

Check your size in my bra calculator
of visit M&S for advise and size chart

measure tape bra size uk

Marks & Spencer | Find your Perfect Fit
UK | US | CA | IE | ES | FR | AU
select your shop/country