Find the proper Level of Bra
Sports Bra – What you need to know
To find the proper level of bra support, first consider the type of activity you’ll be doing. Sports bras are designed to provide three levels of support—low, medium and high—depending on the impact level of the sport. The higher the impact (more bouncing, jumping or intense movement), the more support you’ll likely need. Many brands categorize their sports bras by impact level, making it easier to sort out.
| Support | Activity | Typical Features |
| LOW SUPPORT | Low-impact activities:
Ideal for A/B cups | Ideal for A/B cups Narrower straps and bands, lighter weight Pullover style sold in S-L sizes without band adjustment Often compression bras that hold your breasts to the chest wall |
| MEDIUM SUPPORT | Medium-impact activities:
| Restricts breast movement more than low-support bras Wider bands and straps Found as pullover in S-L sizes or hook closures in cup/band sizing Can be compression (holding breasts to chest wall) or encapsulation styles with separate cups (defining breast shape) |
| HIGH SUPPORT | High-impact activities:
Ideal for D cup or larger | Widest bands and adjustable shoulder straps Most likely encapsulation and compression styles with separate cups for highest support Cup/band sizing Hook-loop closures |
Find Your Sports Bra Size
1. Measure your rib cage
2. Figure out your band size
| Rib Cage Measurement | Band Size |
| 25″ – 27″ | 30 |
| 27″ – 29″ | 32 |
| 29″ – 31″ | 34 |
| 31″ – 33″ | 36 |
| 33″ – 35″ | 38 |
| 35″ – 37″ | 40 |
| 37″ – 39″ | 42 |
| 39″ – 41″ | 44 |
3. Figure out your cup size.
This is a two-step process:
First, measure around the fullest part of your bust. Keep the tape straight across your back. Round up to the nearest whole number. This is your bust measurement.
Now, subtract your rib cage measurement (step 1) from your bust measurement (step 3). The difference in inches is your suggested cup size. If you’re between sizes, round up.
| Bust Size Minus Rib Cage Size | Your Cup Size |
| 3″ | AA |
| 4″ | A |
| 5″ | B |
| 6″ | C |
| 7″ | D |
| 8″ | DD |
| 9″ | E |
| 10″ | F |
Measurement guidelines provided by Brooks.
How long is too long to wear a sports bra?
The answer is that it depends on the type of bra and whether you’ve been keeping on the same sweaty gear all day. But for the most part, you should be safe to wear it for extended periods of time — as long as it fits properly.
Some signs that indicate you should take it off promptly after your workout include:
● If you feel any discomfort.
● If the bands are leaving deep, red marks on your skin (and affecting circulation).
● If your straps are pinching your skin.
● If your chest feels tight and it’s difficult to breathe comfortably.
Bras that are generally safe for long wear are ones that are soft and wire-free. And in case you’re wondering if it’s OK to wear them to bed, the same rules apply. There has yet to be any research showing that sleeping with a bra or sports bra on causes breast cancer. Keeping them on won’t make your breasts perkier, either (you can’t cheat gravity and age). As long as your sports bra is dry and it doesn’t dig into your skin, wearing it for a long period of time shouldn’t cause you harm.
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