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Nike Sports Bras

Your first step to finding your perfect sports bra. Use the charts below to convert your regular bra size into Nike Sports Bra sizes.

Scroll horizontally to see more sizes on each chart.

XS – 3X
Alpha SizeXSSMLXL2XL1X2X3X
Band/Cup Size30A - 30E 32A - 32B32C - 32E 34A - 34C34D - 34E 36A - 36C36D - 36E 38A - 38C38D - 38E 40A - 40C40D - 40E 42A - 42C42D - 42E 44A - 44C44D - 44E 46A - 46C46D - 46E 48A - 48C
Band/Cup Size JP65A - 65E 70A - 70B70C - 70E 75A - 75C75D - 75E 80A - 80C80D - 80E 85A - 85C85D - 85E 90A - 90C90D - 90E 95A - 95C95D - 95E 100A - 100C100D - 100E 105A - 105C105D - 105E 110A - 110C
XS (A-C) – 3X (F-G)
Alpha/Cup SizeXS (A-C)XS (D-E)XS (F-G)S (A-C)S (C-E)S (F-G)M (A-B)M (C-E)M (F-G)L (A-B)L (C-E)L (F-G)XL (A-B)XL (C-E)XL (F-G)2XL (A-B)2XL (C-E)2XL (F-G)1X (A-B)1X (C-E)1X (F-G)2X (A-B)2X (C-E)2X (F-G)3X (A-B)3X (C-E)3X (F-G)
Band/Cup Size30A - 30C 32A - 32B30D - 30E30F - 30G34A - 34B 32C32D - 32E 34C32F - 32G36A - 36B36C 34D - 34E34F - 34G38A - 38B38C 36D - 36E36F - 36G40A - 40B40C 38D - 38E38F - 38G42A - 42B42C 40D - 40E40F - 40G44A - 44B44C 42D - 42E42F - 42G46A - 46B46C 44D - 44E44F - 44G48A - 48B48C 46D - 46E46F - 46G
Band/Cup Size JP65A - 65C 70A - 70B65D - 65E65F - 65G75A - 75B 70C70D - 70E 75C70F - 70G80A - 80B80C 75D - 75E75F - 75G85A - 85B85C 80D - 80E80F - 80G90A - 90B90C 85D - 85E85F - 85G95A - 95B95C 90D - 90E90F - 90G100A - 100B100C 95D - 95E95F - 95G105A - 105B105C 100D - 100E100F - 100G110A - 110B110C 105D - 105E105F - 105G

To get the best fit within our Alpha/Cup size range, find your usual size (XS–3X), then find your usual cup size (A–G). For example, if you typically wear a size Medium and are a C cup, the “M (C–E)” should be your perfect size.

Cup size options: A, B, C, D, E (DD), F (DDD), and G (DDDD).

How To Find The Right Sports Bra Fit

Find Your Bra Size

Find your bra size with our two-step quiz. Before you start, wear an unlined bra that supports your natural shape — no bralette or padded bra.

First, Measure Your Underbust

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.

Three Tips For Finding the Right Fit

Because when it fits, it’s a beautiful thing.

1. Check the Straps

Two fingers should fit comfortably between the band and your shoulders.

2. Check the Band

Raise your arms, making sure the band stays in place.

3. Test the Support

Move in it. You should feel comfortable and confident.

1. Check the Straps

Two fingers should fit comfortably between the band and your shoulders.

2. Check the Band

Raise your arms, making sure the band stays in place.

3. Test the Support

Move in it. You should feel comfortable and confident.

Find Your Nike Sports Bra

Sports Bra Size Chart

Light

Designed for all-day wear, comfort, and support, these bras are softer and less structured. Best for low-intensity activities like yoga, Pilates or casual hikes.
• Nike Indy Bra
• Nike Alate Bra

Sports Bra Size Chart

Medium

Giving you more coverage and compression to keep everything in place, these bras work well for any cup size. Best for medium-impact workouts like running, training and indoor cycling.
• Nike Swoosh Bra

Sports Bra Size Chart

High

Shape, support and compression in one seamless style. This racerback fits like a snug crop top so you’re free to run, jump and shoot hoops.
• Nike Alpha Bra
• Nike Swoosh High Support

Sports Bra Size Chart

Girls

From fit to support level, our girls’ bras are designed to keep up, even while playing hard. This means sweat is no problem!
• Nike Swoosh
• Nike Indy
• Nike Trophy