Free Delivery

Free standard delivery for members on orders $80+. Learn more.

Find Your 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
Second, Measure Your Cup
Your Nike Bra Size

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 tape measure, use 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 centre 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.

Use the charts below to convert your usual bra size into Nike Sports Bra sizes.

Scroll horizontally to see more sizes on each chart.

Three Tips for Finding the Right Fit

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

1. Check the Straps

If the underband stays put when you raise your arms, you're good to go. It should sit level on your ribs with enough room for two fingers underneath. Straps should feel secure and barely there—no digging or slipping.

2. Check the Band

Make sure the fabric's got you fully covered without gaping, bulging or, you know, squishing the girls.

3. Test the Support

Do five star jumps (or any move you'd normally do in a workout). Too much bounce? Go for a higher-support style, a wider strap or a trusty racerback.

Current Time 0:00
Duration 0:00
Loaded: 0%
Stream Type LIVE
Remaining Time 0:00
 
1x
    • Chapters
    • descriptions off, selected
    • captions and subtitles off, selected
      Current Time 0:00
      Duration 0:00
      Loaded: 0%
      Stream Type LIVE
      Remaining Time 0:00
       
      1x
        • Chapters
        • descriptions off, selected
        • captions and subtitles off, selected
          Current Time 0:00
          Duration 0:00
          Loaded: 0%
          Stream Type LIVE
          Remaining Time 0:00
           
          1x
            • Chapters
            • descriptions off, selected
            • captions and subtitles off, selected

              1. Check the Straps

              If the underband stays put when you raise your arms, you're good to go. It should sit level on your ribs with enough room for two fingers underneath. Straps should feel secure and barely there—no digging or slipping.

              2. Check the Band

              Make sure the fabric's got you fully covered without gaping, bulging or, you know, squishing the girls.

              3. Test the Support

              Do five star jumps (or any move you'd normally do in a workout). Too much bounce? Go for a higher-support style, a wider strap or a trusty racerback.

              Shop by Features

              Adjustable

              Adjustable

              A fit so good, it feels custom. With hook-and-eye clasps, adjustable straps and more, you can fine-tune these bras so they hit in all the right places.

              Easy On/Off

              Easy On/Off

              Say goodbye to wrestling with your sports bra after a workout. Back clasps and some extra stretch make these bras a breeze to put on and remove.

              Padded

              Padded

              Whether you prefer removable pads or some built-in oomph, there's a padding option out there for every occasion.

              Maternity

              Maternity

              Shop bras with discreet layers and sliding bands that make pregnancy and beyond a little easier.