Women's Tops

The measurements on the size chart are body measurements. Find your correct size in the chart below. Scroll horizontally to see more sizes.

Nike (M) maternity sizes fit true to pre-pregnancy sizes.

Fit Tips

Tall Top Sizes (5'8"–6'/173–183cm approx.): 1.75"/5cm longer (approx.) in length than regular tops. Sleeve length is adjusted proportionately depending on silhouette. Tall Sizes are only available for selected styles.

If you're on the borderline between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit. If your measurements for bust and waist correspond to two different suggested sizes, order the size indicated by your bust measurement.

How to Measure

Bust: Measure around the fullest part of your bust, keeping the tape measure horizontal.

Waist: Measure around the narrowest part (typically where your body bends side to side), keeping the tape horizontal.

Hips: Measure around the fullest part of your hips, keeping the tape horizontal.

Women's Bottoms

The measurements on the size chart are body measurements. Find your correct size in the chart below. Scroll horizontally to see more sizes.

Nike (M) maternity sizes fit true to pre-pregnancy sizes.

Fit Tips

Short Bottoms Sizes (5'4"/163cm approx. and under): Inseam is 2"/5cm (approx.) shorter in length and 3/8"/1cm (approx.) shorter in rise than our regular fit.

Tall Bottoms Sizes: (5'8"–6'/173–183cm approx.): Inseam is 2"/5cm (approx.) longer in length and ½"/1cm (approx.) longer in rise than our regular fit.

Tall and Short sizes are only available for selected styles. Inseam refers to the length of the garment, from the crotch seam to the hem. Please find style-specific inseam details on the product page.

If one of your body measurements is on the borderline between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit. If your body measurements for hips and waist correspond to two different suggested sizes, order the one indicated by your hip measurement.

How to Measure

Waist: Measure around the narrowest part (typically where your body bends side to side), keeping the tape horizontal.

Hips: Measure around the fullest part of your hips, keeping the tape horizontal.

Bras

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 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.

To get the best fit within our Alpha/Cup size range, find your usual size (XS–4X), 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).

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

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.