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What Sports Bra Size Am I? | Find Your Perfect Sports Bra

Do you know 80% of the women out there are wearing the wrong bra size? You could be one of them. But don’t worry, in today’s article, we will share everything you need to know about picking the best sports bra, including what sports bra size am I, your fitting, support, construction etc.

Just stick to this article until the end, and all of your questions about sports bras will be resolved.

Why should you put on a good sports bra while running?

When you perform running, your breasts move up and down as much as eight inches. This unique motion put your cooper’s ligaments that support your breasts under a lot of strain. If you don’t have the right support, you might experience soreness, and it could result in lasting damage.

Studies have shown that breasts tissues are damaged while running in regular bras and a number of sports bras. The low to medium impact sports bra could only reduce bounce, but the side-to-side movement is not restricted, so overall, they are ineffective.

As a matter of fact, the way women run depends a lot on the type of bra they are wearing, so to sum up, having a good sports bra not only gives you the needed support but also help you to set a new PB.

Sport bra at sport store

What level of support is required for me?

Three different levels of support are provided by Sports bra.

  1. Low
  2. Medium
  3. High Impact

Which level of support you need is totally dependent on your cup size and the type of exercise you do.

1. Low to Medium-Impact Sports Bras

Low impact activities: yoga, walking, and strength training.

Medium impact activities: cycling, skiing, Dancing.

Construction: Cup-less design to control the breasts movements by pressing them tightly against the chest wall.

2. High Impact Sports Bras

High impact activities: aerobics, mountain biking, Running.

Construction: In contrast to low to medium bras, the high impact bras have a defined cup structure that supports and encapsulates each breast. To maximize support, a combination of both encapsulation and compression is used by some high impact bras.

Sports bra fitting guide

Step 1:

The first step to measure your sports bra size is your rib cage measurement, so measure around your rib cage located just under your breast with a snug measuring tape. The measurement should not be too tight; it should be loose enough that you can fit two fingers underneath. What digit you got on measuring tape, round it down to the nearest full inch.

Step 2: The below table will help you to find the right band sizes on the basis of your rib cage measurement.

Rib cage               Band size


25″ – 27″




27″ – 29″




29″ – 31″




31″ – 33″




33″ – 35″




35″ – 37″




37″ – 39″




39″ – 41″





Step 3:

The third step is to get your bust measurement. For this, take the measuring tape and cover it around the fullest part of the breasts. Remember, the measurements should be snug and not too tight enough that it limits breathing.

Step 4: To get your cup size, subtract the rib cage measurement from your bust measurement, and the difference is your cup size. Round it up to the closest if you’re in between sizes.

The difference in cup size


Your cup sizes


3 AA


4 A
5 B
6 C
7 D
8 DD
9 E


An alternative to steps 3 and 4: If you don’t want to do the measurements, try two to three different cup sizes. Remember that the cup should fit perfectly without gaps or wrinkles but not too tight that the breasts spill out of the bra from the sides.

Tips for getting the perfect sized Sports bra

We are sharing some tips to avoid getting confused while trying a few different sizes and brands.

  1. Snug, but not too tight
  2. No gaps
  3. No Wrinkles
  4. Move around to check the comfort level
  5. Adjust the straps

How long usually does a sports bra last?

A good quality sports bra will last for around 30-40 machine washes. But with each cycle, the technical fabric gets loosen, which makes it less effective.

You can try some tips like washing them in cold water, avoid using bleach or fabric softener to give your sports bra a longer life span. Also, you can choose renowned brands like Halara for purchasing your sports bra in excellent quality so you can enjoy a longer life span. Halara has a huge collection of stylish and comfortable sports bras with perfect size measurements. Thousands of women trust Halara because of its effective quality and getting the right answer to the question What Sports bra size Am I? You can also be one of those women. Buy your sports bra from Halara now!


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