Sports bra fit experience

If you run, if you play — however you move — we believe a properly-fitting sports bra is transformative. It’s our job to change your expectations of what sports bras can do.

Find your perfect fit

A sports bra needs to be properly-fitted the same way that a standard bra does. Follow these steps to make sure you're wearing the right size and style for you.

1. Position the cups

Situate your breasts by bending forward and scooping them fully into each cup. The band should sit completely under your breasts, and your breasts should sit comfortably in the cups. If they feel forced together, spill out of the cups, or if the cups are digging into your skin, go up to the next size. If there’s gaping anywhere in the cups, try sizing down.

2. Flex the band

Stick two fingers underneath the band. You should be able to slide them around your ribcage without issue. If you’re unable to move them freely, try a size up. If there’s gaping or too much room, try a size down. Next, remove your fingers, and take a deep breath. This should be easy to do. If you feel constricted, size up. Lastly, raise your arms and check that the band doesn’t creep up as you move. If it does, size down.

3. Stretch the straps

Take note of how tight the straps are. They’re too tight if they’re digging into your shoulders and leaving grooves or redness after wearing. If so, and the bra you’re wearing has adjustable straps, loosen them. If your band fits right but your straps are too tight, consider trying an adjustable style instead. Next, pull your straps upwards. You should only be able to do this about five centimeters, or a couple of inches. If yours stretch longer, they’re too loose.

4. Move your body

Jog in place to ensure the bra is holding you in without annoying bounce and allows you to breathe normally. After you purchase, it’s time for the real test: working out in your bra. Take the tags off and exercise in it, while observing the band, cups, and straps. Your bra should feel like a supportive hug and not restrict your movement. If it’s not right, the New Balance Fit Promise™ for Sports Bras will ensure you get the size and style bra that’s best for you.

A group of women wearing sports bras and leggings in front of a dark background.

Our fit promise

Our commitment is simple – if this sports bra doesn’t fit, we will take it back even after wear, and help get you into the right fit. Or give you your money back.

It’s our job to change your expectations of what sports bras can do.

New Balance Fit Promise ™ for Sports Bras

Our commitment is simple – if this sports bra doesn’t fit, we will take it back even after wear, and help get you into the right fit. Or give you your money back.

It’s our job to change your expectations of what sports bras can do.

New Balance Fit Promise ™ for Sports Bras

Find your size

Comfort and a secure fit are key for your best workouts. Follow our easy measuring guide to find your correct size and get the best sports bra for you and your needs. Grab a soft measuring tape, or a ribbon and a ruler, put on your best fitting unpadded bra, and follow these steps.

A woman wearing a sports bra with dotted lines added over the image to indicate where to measure for the right fit.

Step 1: Find your band size

While wearing your best-fitting unpadded bra, wrap a measuring tape around your ribcage. It should be snug, but not too tight. This measurement is your under bust.

Use your under bust measurement and the chart below to determine your band size.

	Band size

	8	10	12	14	16	18	20

in	25-27	27-29	29-31	31-33	33-35	35-37	37-39
cm	64-69	69-74	74-79	79-84	84-89	89-94	94-99

Step 2: Find your bust size

Next, wrap the measuring tape around the fullest part of your breasts. Again, it should be snug, but not too tight. This measurement is your bust.

Step 3: Find your cup size

Subtract your band size from your bust size. Use the difference and the chart below to determine your cup size. For example: Band = 36. Bust = 39. Cup Size = C (39 - 36 = 3 difference). This would be a 36C bra size.