AAA cup

As an Amazon Associate, I earn from qualifying purchases, see my full disclosure 

These women’s bras come in a beautiful AAA cup size. Read all about AAA Bras

woman wearing aaa cup lulalu bra

Callie Wireless Lace Bra | AAA, AA & A cup | See

How will I know if I need an AAA cup?

To determine your best bra size you’ll need to know your measurements.

If you’re small-chested be sure to check a chart that includes the small cup sizes! Or use my bra calculator (cups AAA-O).

Her Room Banner

See my bra calculator or shop for bras at:

Lulalu Bras | Women's AAA-A cups »

HerRoom | Training and teen bras »

ThirdLove | Asymmetric Breasts »

Lulalu bras for women with AAA, AA, A cups | bands 30-42 | See

Remember that bra sizes can be close. Very close.

A little difference in measurements can result in a whole new band size and cup size.

The bras 42AA, 44AAA, and 40A all have the same cup volume (they are called sister sizes).

So if you are in between two possible band sizes and want to keep the same cup volume? You will have to go up or down a cup as well.

Why are AAA cups easily overlooked?

Many Petites never had a chance to try an AAA cup size. Let alone, never knew this cup size was available?

Lots of AAA and AA women never enter a lingerie shop in the first place, feeling they don’t belong there… (which indeed we do not).

  • if a shop doesn’t sell your size, how can they give proper advice?
  • you may have heard the comment (I did) ‘Why should you be wearing a bra anyway for having that small boobs

Let me just share with you my 6 reasons why small boobs deserve a fine bra

The difference between an A, AA, and AAA cup

woman wearing bra collection lulalu cup aaa

Collection Lulalu AAA, AA & A cup | See

Only a slight change in measurement could mean you choose another bra size. It may also be that 2 different bra sizes will fit the same woman.

 The bras 40AA and 40AAA have a different cup volume
The bras 38AA and 40AAA have the same cup volume
The bras 36B, 38A and 34C have the same cup volume

I myself wear 34AA and 36AAA. Even a few of my bras are 34A. Depending on the brand (bras can be shaped differently) and the bra style I choose to wear different sizes.

Going up or down a band size what happens?

Remember that when going up or down a band size your cup volume will automatically change as well.

For example, the bras 32A and 34A do not have the same cup volume.
The bras 32A, 30B, and 34AA do have the same cup volume. They are sister sizes

For example, if you wear bra 34B and find the band is too tight – you choose 36A (to keep the same cup volume).
If you feel the cups are too big on you as well, you might try 36AA or 36AAA.

AAA cup shopping guide

Lulalu (US) and Little Women (UK) are lingerie brands that have AAA cups in their collection.

Although this may seem a little for all those women wearing AAA cups. But you do not need to worry.

Their collections are just… wonderful You’ll find all styles any woman would expect from a lingerie store.


Lulalu is an American lingerie company with an exclusive collection of small cup-sized bras.
They carry AAA, AA, and A cup bras in band sizes 30 up to 42 

We recognize that not all women who wear AAA, AA, or A sizes fit the same mold. We make bras for real bodies, not just the conventional definition of “petite” sizing.

You can shop Lulalu Lingerie at

Little Women

UK shop Little Women has a collection of their own Little Women Bras. Lots of AAA cups in bands 30-44

woman wearing bra from little women cup aaa

Say goodbye to teenage training bras and say hello to feminine matching sets and bras that are designed for you specifically.

A great shop for women with small cups AAA-B cups. See their collection here 

A well-fitted bra gives you confidence. Sure thing. Do you have any doubts about your bra size? Please check out the bra size chart for small cup sizes or use the bra size calculator.

Play around a bit with your measurements and find your best fit!

My other guides

Bra calculator
6 Reasons Petites deserve a fine bra
Measure smaller breasts
Cup AA guide (also teens)
Cup A guide
Mastectomy bras
Bra Accessories
Blogs on bras and more

Is there a question about your bra still unanswered? Please let me know. I’ll be happy to advise.

Lulalu Bras for women with AAA, AA, A cups | bands 30-42 | See

Her Room Banner

See my bra calculator or shop for bras at:

Lulalu Bras | Women's AAA-A cups »

HerRoom | Training and teen bras »

ThirdLove | Asymmetric Breasts »