woman in pink bra small cup

The smallest bra size online

ThirdLove invented half-cups
AA to I cups Shop now
⭐ Herroom AA - M cups Shop by your size
⭐ Amazon Best Rated Bras Shop Now

You won’t find the smallest bra sizes in the lingerie shop near your place. And that’s ok because we live in the age of the internet.

  • How come many women do not wear the right small bra cup size?
  • Why it’s a must to know your own sizes as a petite?
  • Learn more about the 4 smallest bra cup sizes AAAA, AAA, AA, and A.

DOBREVA Women’s Front Closure T-Shirt Push Up Adds 1 Cup Size AA – DD cup (Amazon)

See collection Dobreva (Amazon)


Why many women do not wear the right small cup bra size?

I meet a lot of women who wear A and B cups but really need a smaller cup size like AA or AAA. But it could also be they need a B cup instead of the A cup they are wearing. Remember that sizes can be very close.

How come many petites still end up wearing a bad-fitted bra?

  • in the shops, we cannot try the smallest sizes because they don’t sell them
  • we often get the wrong advice after fitting. How can anyone advise you if they do not stock your size and are not aware of the existence of the smallest sizes?
  • 99% of bra size charts do not list the smallest cup sizes. You cannot possibly check your sizes if you’re small, and then likely just will choose a cup size that is closest to your measurements
  • it is very normal to stick to something that is not good for you, like a bad-fitted bra
  • we do not take some time to measure our sizes and check them in the right bra size chart
  • our body has changed and maybe our breasts as well, but we keep on wearing the bra size we’ve always been wearing
woman in a small bra size
Our body and breasts can change in size during life

It’s very common for small breasted women not to have had the right bra size ever before! If you’re small you tend to avoid the lingerie stores, feeling you don’t belong here.


Why it’s a must for every petite to know their own sizes?

I encourage every woman to learn about her own sizes. Even if you have a bra fitting I always advise to write down your own measurements. It will make it easier to check your size in a size chart (or calculator) and see what your options are. You may have more than one bra size that might fit you fine.

I have 3 different bra sizes and they all fit me fine. I usually have 34AA, but I’m close to the band size 36. In this case, I go for 36AAA. Because when going up or down a band size the cup volume of the bra will change too.

A bra in 34AA and 36AA do not have the same cup volume. However, a bra in 34AA and 32A do have the same cup volume.

Hanes Women’s Convertible Seamless Wire Free Bra Small – X-Large (Amazon)

See collection Hanes (Amazon)


The 4 smallest bra sizes

Let me just say ‘there’s no such thing as boobs being too small’.

Women are unique and so are their breasts. That’s why breasts come in all kind of sizes and shapes. Please know that there is a bra size for every petite woman. There is no need to feel left out. Times have changed for the better. If you are a petite breasted woman you can shop too. Thank god some ladies started designing small bras out of their own needs and the needs from women around them. It may seem that boobs only get bigger and bigger. But there are, and always will be, LOTS of women with smaller breasts. 

I personally believe we could fill up a new planet with the whole lot of us. It is my mission for every small breasted woman to become a bra LOVER.

Bra cup A is not the smallest cup size that you can buy. Even though many people may think it is. Other small cup sizes are AAAA cup, AAA cup and AA cup.

I’ve met (and meet) women who wear an A cup bra (or a B cup bra) that is too big for them but never really considered trying a smaller cup size. Although they are not happy with their bras, lacking support and not making their self-esteem grow.

woman in bra looking in the mirror
Only a well fitted bra makes a woman a bra lover


The four smallest bra sizes

AAAA cups

Lingerie store Dainty Lady
Dainty Lady is an exclusive British online lingerie store. Their collection of small bras are available in cup sizes from AAAA, AAA, AA, A and B cups, in bust sizes 28 to 46 and with matching lingerie in sizes 6 to 18.

AAA cups

lulalu.com
The only American store with AAA cups.
Lulalu makes intimate apparel for women who wear AAA, AA, and A cups, with band sizes ranging from 30-38.

littlewomen.com
Their bras are designed for women in 28 to 40 AA, A and B cups. The collection has an exclusive range of AAA bras, sized 32 to 40. 

daintylady.co.uk
Their small bras are available in cup sizes from AAAA, AAA, AA, A and B cups, in bust sizes 28 to 46 and with matching lingerie in sizes 6 to 18.

knowknockers.co.uk
aaa – b cups

AA cups

  • AA cups at Herroom » brands: Amoena, Anita, Tween Bee.
  • AA cups at Thirdlove » 50% of women fall in between standard cup sizes, ThirdLove invented half-cup sizing. 34A½, 36A½, 38A½, 32B½, 34B½, 36B½, 30C½, 32C½, 34C½, 30D½, 32D ½, 30E½
  • AA cups on Amazon: Pepper, Amoena, Anita, Tween Bee.
pepper bra aa cup
Pepper bra AA – B cups (Amazon)

See collection AA & A cups (Amazon)

A well-fitted bra feels comfortable and makes your clothes look even better, it gives you confidence.


Go to bra size calculator and determine your best bra size


Amazon AA cup bras »


Amazon A cup bras »


Amazon B cup bras »


Amazon C cup bras »


Video Top 10 for petite ladies by Herroom

How To Measure Your Bra Size
Bras For Women With Small Cup Sizes
Bras For Strapless And Backless Dresses
Best Bra Styles For Deflated And Pendulous Breasts
Best Bras For The Plus Size Petite Woman
Cleavage Defined: The Hidden Truth


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