| Size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Numeric Size | 6 - 7 | 8 - 9 | 10 - 12 | 14 - 16 | 18 - 20 |
| Underbust (in) | 24.5 - 25.5 | 26 - 27 | 27.5 - 28.5 | 29 - 30.5 | 31 - 32.5 |
Teen Bra Guide
Find Your Fit. Find Your Confidence.
Sports bras aren't just for game day, they're an everyday essential. The right bra backs you up, whether you're mid-workout, running to class, or just hanging out. Here's how to find the fit and support that keep up with your life, wherever you're headed.
Look at the ribcage (underbust) measurements in the chart to help find the right size and perfect bra for you. No guessing, no stressing.
How to Measure: 3 Steps
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Measuring Your Underbust
Wrap a soft tape measure around your ribcage, just under your chest (that’s your underbust). Keep it level and snug. Not too tight, not too loose.
No Measuring Tape? No Problem
A string, shoelace, or ribbon works too. Wrap it around your underbust, mark where it meets, then measure the length with a ruler. Easy.
Find Your Bra Size
Match your underbust measurement to the size chart. If you’re between sizes, go for the bigger one — a little extra room always feels better than too tight. If you need a bigger size, check out the women’s sizes below.
Find Your Women's Bra Size
Getting the right size bra is crucial to lock in all the benefits. Grab a tape measure and an unlined bra to see how you measure up in Nike Bras. If you don’t have a tape measure, string and a ruler work too.
First, Measure Your Underbust
Measure around the bra’s bottom band, just under the breast. The tape measure should feel snug. Round up to the closest measurement. If you don’t have a measuring tape, use a string and a ruler. Follow the above instructions. Lay the string on a flat surface and measure with the ruler.
Second, Measure Your Cup
With the tape measure parallel to the floor, lay the tape across the fullest point of your breast. Measure from the center of your chest to where your breast tissue ends on one side (where an underwire should sit). Round up to the closest measurement.
Your Nike Bra Size
Alpha/Cup Size
Based on your answers, this is the bra size we think will fit you best.
When to Transition to Women’s Bras
If your measurements are at the upper end of the girls' size chart (or you need more support, like a bra with cups), it's time to check out women's bras. The underbust measurements between girl's and women’s bras overlap slightly. You may find your best fit in women’s bras if you fall within this overlap and need a more custom fit.
Women’s bras are created using alpha (XXS-4X) and alpha hybrid (S (A-C)) sizing. Use the interactive size finder to find your perfect fit.
How to Pick Your Bra: Support, Coverage, Style
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Support
Make sure to go with the support level that matches your moves.
Light: yoga, pilates or chill days, for comfort without too much hold.
Medium: strength training or gym sessions, when you need a bit more stability.
High: intense activities like HIIT or running, for when you need maximum hold.
Coverage
Performing at your best means performing in something you are comfortable in. Explore both Girls’ and Womens’ styles for a variety of coverage options that best suit you.
Style
Choose the right Nike bra for your activity and personal style. Strappy, racerback, and vibrant colors – your perfect style is waiting for you.
Nike Indy Bra
Minimal coverage for freedom to flex. Strappy design for a look that flatters. Neckline and band offer expressive style.
Nike Alate Bra
Softly lined cups for contouring comfort. Smoothing back panels for a polished look. Adjustable, convertible criss-cross straps.
Nike Swoosh
Winning support for every move. Sleek racerback design for comfort during clutch moves. Classic compression sports bra, for a snug fit.
Top Picks
Nike Indy Bra
Minimal coverage for freedom to flex. Strappy design for a look that flatters. Neckline and band offer expressive style.
Nike Alate Bra
Softly lined cups for contouring comfort. Smoothing back panels for a polished look. Adjustable, convertible criss-cross straps.
