Teenage cup sized bras for AA, A & B

This article contains (Amazon) affiliate links, see my full disclosure at the bottom of the page.

bra for developing girls cup aa

From the collection Yacca at Amazon.com

Here’s a quick guide on how to measure yourself and find the teenage bra you like. See my Amazon selection of 8 cup-sized teen bras


Check my bra calculator or your shop for bras & size charts

AAA - A cups » Lulalu.com
Fitting Room | video & charts » Herroom
AA - H including half cups » Thirdlove



Bra sizes for teenage girls

starter bra calvin klein

Teenage bras start from cup AA and go up, depending on the brand, to a cup B, or C.

As a teenage girl, it could be you need a cup AA, but it can also be you need an A, B or C cup. Many grown-up women also still wear the smaller cup sizes AA-B. All girls and women have unique bodies and breasts.

Remember that there’s no such thing as being too small or too big. Nature comes in all sizes (and this will always be like this).

AAA, AA, A cups | Shop at lulalu.com


It might be that your breasts are (still) too small for a cup AA. You then want to look for bras and bra tops that come in sizes starting from x-small. The collection of girl’s underwear on Amazon has a bra or bra top for any girl, regardless of what size she is.


How many bras do I need?

cotton training bra girls cup a and cup b

Starting with 3 or 4 bras will do. You might need a bigger bra size soon if you’re still growing. As a young girl, your bra size can change in a short time.

  • you need different bras for different occasions, like school or doing sports
  • you can wear different styles depending on what you wear, for example, a racerback style underneath your summer dress or low cut top
  • did you know that your bra needs a rest after wearing it?
  • the elastic fiber will regain its shape
  • if you have a couple of bras you can rotate between them
  • your bras need to be washed regularly. This keeps the fibers clean and more elastic.


How to measure my first bra?

To decide on your bra cup size you will need to take two measurements. You can measure yourself at home, it is not difficult. Of course, you can ask your mother or a friend to help you take your measurements.

how to measure your band size and your cup size for teenagers

There are only 3 steps really.

Step 1 Measure your underbust
Hold the tape under your breasts and write down the inches or centimeters.

Step 2 Measure your bust
Hold the measuring tape around the fullest part of your breasts. Don’t pull the tape too tight. Write down the inches or centimeters.

You need a measuring tape and a mirror to check if you’re holding the tape horizontal.

Step 3 Find your best bra size in a bra size chart. Or you can use our handy bra size calculator


Teenage bra size chart in centimeters
Always start with choosing your best bra band size first. Go from there to decide on your cup size.

bra size chart teenage girls
bra size conversion chart

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Many girls are just in between two band sizes or cup sizes. So you might have doubts about which bra size to choose. Just play around a bit with the measurements and maybe measure a couple of times.


Going up or down a band size will change the cup volume as well.

  • if you want to keep the same cup volume you would have to go up or down a cup size as well
  • for example, 75A and 70B bras have the same cup volume
  • 75A and 80A do not have the same cup volume


10 teenage bras cup AA-B


1. YACCA Seamless Teen Bra Removable Thin AA Cup

bra for developing girls cup aa

YACCA Seamless Teen Bra Removable Thin AA Cup | See collection Yacca at Amazon.com

 with 22% spandex
 one size and very flexible
AA cup padding
 great fit for developing breasts
 clean cut edges, invisible under clothing


2. Barbra Big Girls Bras for Molded Padded Juniors Training Bra

junior bra 30a 32a 34a and 36a

Barbra Lingerie Big Girls Bras for Teen Girl Wireless Molded Padded Juniors Training Bra 5 Pack | See details at Amazon.com

 sizes 30A, 32A, 34A and 36A
 wireless
molded lightly padded bra
 adjustable straps to three sizes for developing teen girls
 90% cotton, 10% spandex
 5 pack


3. YACCA Girls Training Bra-Racerback with Removable Mini-A Cup

girls training bra small cup a

YACCA Girls Training Bra-Racerback with Removable Mini-A Cup | See collection Yacca at Amazon.com

 suitable for AA-A cup
 weight of 77lbs-110lbs
smooth, soft fabric
 absorbs moisture


4. Calvin Klein Girls’ Big Seamless Hybrid Starter Bra 30-36A

starter bra calvin klein

Calvin Klein Girls’ Big Seamless Hybrid Bra | See Calvin Klein Girls’ collection at Amazon.com

 47% Polyester, 45% Nylon, 8% Spandex
 adjustable straps
soft and seamless

The starter bra from Calvin Kleins comes in several colors | See here on Amazon


5. Phennie’s Big Girls Cotton Training Bras Wireless | 8-18 Years

cotton training bra girls cup a and cup b

Phennie’s Big Girls Cotton Training Bras Wireless | 8-18 Years | See details at Amazon.com

 95% cotton, 5% spandex
 A-B cups
band sizes 32-38
 padded cups


6. Alyce Girls & Teens 6 pack Lightly Padded Bra 30-36A

wired bra for girl

Alyce Intimates Girls & Teens Lightly Padded Bra, Pack of 6 | See details at Amazon.com

 95% polyester, 5% spandex
 assorted solid colors
lightly padding


7. Bebe Girls’ Training Bra Molded Cups | 30A-34A

girls training bra molded cup a and b

Girls’ Training Bra – 4 Pack Soft Microfiber Molded Bra | See details at Amazon.com

 molded cups
 adjustable spaghetti straps
perfect for playing sports or relaxing at home


8. Maidenform Girl Big Girls’ Slim Softi Cup Bra | 30A-38A

big girls bra 36a and 38a

Maidenform Girl Big Girls’ Slim Softi Cup Bra | See details at Amazon.com

 83% nylon, 17% spandex
 super soft wireless comfort
lite liner


Other articles you might like

Sports bras for teens
How to measure your bra band
The smallest bra cup online
Small bra size chart AAA-B
My favorite 34aa bras
Bralettes for small breasts
Best AA cup brands
Strapless bras for AA
Guide for AA cups | bras & swimwear

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AAA, AA, A cups | Shop at lulalu.com



Check my bra calculator or your shop for bras & size charts

AAA - A cups » Lulalu.com
Fitting Room | video & charts » Herroom
AA - H including half cups » Thirdlove


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