Size charts
Running Size Charts
Size charts for every FJ Sportswear running product. Open a chart to see the measurements, switch between inches and centimetres, or go straight to the product.
New to custom sizing? Read our Size Guide →Team size list: collect your team’s sizes →
TopsRunning Shirts
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TopsRunning Singlets
View size chartTopsWomen’s Racerback Running Singlets
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ShortsRunning Shorts (5″)
View size chartShortsWomen’s Running Shorts (3″)
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TopsHalf-Zip Running Tops
View size chartNo size charts match. Search all size charts
All charts
All Running Size Charts
Running · Tops
Running Shirts Size Chart
Men’s sizes · measurements in inches
| Size | A Chest width | B Body length |
|---|---|---|
| XS | 19.5 | 26 |
| S | 20.5 | 27 |
| M | 21.5 | 28 |
| L | 22.5 | 29 |
| XL | 23.5 | 30 |
| 2XL | 24.5 | 31 |
- A Chest width: measure straight across the front, 1 inch below the armholes, side seam to side seam.
- B Body length: from the highest point of the shoulder down to the bottom hem.
Women’s sizes · measurements in inches
| Size | A Chest width | B Body length |
|---|---|---|
| XS | 17 | 24 |
| S | 18 | 25 |
| M | 19 | 26 |
| L | 20 | 27 |
| XL | 21 | 28 |
| 2XL | 22 | 29 |
- A Chest width: measure straight across the front, 1 inch below the armholes, side seam to side seam.
- B Body length: from the highest point of the shoulder down to the bottom hem.
Youth sizes · measurements in inches
| Size | A Chest width | B Body length |
|---|---|---|
| YXS | 15.5 | 21.5 |
| YS | 16.5 | 22.25 |
| YM | 17.5 | 23 |
| YL | 18.5 | 23.75 |
| YXL | 19.5 | 24.5 |
- A Chest width: measure straight across the front, 1 inch below the armholes, side seam to side seam.
- B Body length: from the highest point of the shoulder down to the bottom hem.
These charts are a general guide to help you plan sizes for your team. Once your order is confirmed, we share the exact size chart for your style so you can give us the final size for every piece.
Running · Tops
Running Singlets Size Chart
Men’s sizes · measurements in inches
| Size | A Chest width | B Body length |
|---|---|---|
| XS | 18 | 24.5 |
| S | 19 | 25.5 |
| M | 20 | 26.5 |
| L | 21 | 27.5 |
| XL | 22 | 28.5 |
| 2XL | 23 | 29.5 |
- A Chest width: measure straight across the front, 1 inch below the armholes.
- B Body length: from the highest point of the shoulder down to the bottom hem.
Women’s sizes · measurements in inches
| Size | A Chest width | B Body length |
|---|---|---|
| XS | 15 | 23.75 |
| S | 16 | 24.75 |
| M | 17 | 25.75 |
| L | 18 | 26.75 |
| XL | 19 | 27.75 |
| 2XL | 20 | 28.75 |
- A Chest width: measure straight across the front, 1 inch below the armholes.
- B Body length: from the highest point of the shoulder down to the bottom hem.
Youth sizes · measurements in inches
| Size | A Chest width | B Body length |
|---|---|---|
| YXS | 14.5 | 20 |
| YS | 15.5 | 21 |
| YM | 16.5 | 22 |
| YL | 17.5 | 23 |
| YXL | 18.5 | 24 |
- A Chest width: measure straight across the front, 1 inch below the armholes.
- B Body length: from the highest point of the shoulder down to the bottom hem.
These charts are a general guide to help you plan sizes for your team. Once your order is confirmed, we share the exact size chart for your style so you can give us the final size for every piece.
Running · Tops
Women’s Racerback Running Singlets Size Chart
Women’s sizes · measurements in inches
| Size | A Chest width | B Body length |
|---|---|---|
| XS | 15 | 23.75 |
| S | 16 | 24.75 |
| M | 17 | 25.75 |
| L | 18 | 26.75 |
| XL | 19 | 27.75 |
| 2XL | 20 | 28.75 |
- A Chest width: measure straight across the front, 1 inch below the armholes.
- B Body length: from the highest point of the shoulder down to the bottom hem.
Girls’ sizes · measurements in inches
| Size | A Chest width | B Body length |
|---|---|---|
| GXS | 13 | 21.5 |
| GS | 13.75 | 22 |
| GM | 14.5 | 22.5 |
| GL | 15.25 | 23 |
| GXL | 16 | 23.5 |
- A Chest width: measure straight across the front, 1 inch below the armholes.
- B Body length: from the highest point of the shoulder down to the bottom hem.
These charts are a general guide to help you plan sizes for your team. Once your order is confirmed, we share the exact size chart for your style so you can give us the final size for every piece.
Running · Shorts
Running Shorts (5″) Size Chart
Adult sizes · measurements in inches
| Size | A Waist (relaxed) | C Inseam |
|---|---|---|
| XS | 12.5 | 5 |
| S | 13.5 | 5 |
| M | 14.5 | 5 |
| L | 15.5 | 5 |
| XL | 16.5 | 5 |
| 2XL | 17.5 | 5 |
- A Waist: measure across the top of the waistband, laid flat and relaxed.
- C Inseam: from the crotch seam down the inside leg to the hem.
Youth sizes · measurements in inches
| Size | A Waist (relaxed) | C Inseam |
|---|---|---|
| YXS | 8.5 | 5 |
| YS | 9.5 | 5 |
| YM | 10.5 | 5 |
| YL | 11.5 | 5 |
| YXL | 12.5 | 5 |
- A Waist: measure across the top of the waistband, laid flat and relaxed.
- C Inseam: from the crotch seam down the inside leg to the hem.
These charts are a general guide to help you plan sizes for your team. Once your order is confirmed, we share the exact size chart for your style so you can give us the final size for every piece.
Running · Shorts
Women’s Running Shorts (3″) Size Chart
Women’s sizes · measurements in inches
| Size | A Waist (relaxed) | C Inseam |
|---|---|---|
| XS | 12.5 | 3 |
| S | 13.5 | 3 |
| M | 14.5 | 3 |
| L | 15.5 | 3 |
| XL | 16.5 | 3 |
| 2XL | 17.5 | 3 |
- A Waist: measure across the top of the waistband, laid flat and relaxed.
- C Inseam: from the crotch seam down the inside leg to the hem.
Girls’ sizes · measurements in inches
| Size | A Waist (relaxed) | C Inseam |
|---|---|---|
| GXS | 8.5 | 3 |
| GS | 9.5 | 3 |
| GM | 10.5 | 3 |
| GL | 11.5 | 3 |
| GXL | 12.5 | 3 |
- A Waist: measure across the top of the waistband, laid flat and relaxed.
- C Inseam: from the crotch seam down the inside leg to the hem.
These charts are a general guide to help you plan sizes for your team. Once your order is confirmed, we share the exact size chart for your style so you can give us the final size for every piece.
Running · Tops
Half-Zip Running Tops Size Chart
Men’s sizes · measurements in inches
| Size | A Chest width | B Body length |
|---|---|---|
| XS | 19 | 25.5 |
| S | 20 | 26.5 |
| M | 21 | 27.5 |
| L | 22 | 28.5 |
| XL | 23 | 29.5 |
| 2XL | 24 | 30.5 |
- A Chest width: measure straight across the front, 1 inch below the armholes, side seam to side seam.
- B Body length: from the highest point of the shoulder down to the bottom hem.
These charts are a general guide to help you plan sizes for your team. Once your order is confirmed, we share the exact size chart for your style so you can give us the final size for every piece.
How to measure
How to Measure for the Right Fit
- A Chest width: measure straight across the front, 1 inch below the armholes, side seam to side seam.
- B Body length: from the highest point of the shoulder down to the bottom hem.
- C Sleeve length: from the shoulder seam to the end of the sleeve.
Measure a garment that fits
Lay a well-fitting jersey, shirt or pair of shorts flat and measure it. Compare with the chart.
Use a soft tape
Keep the tape straight and flat. Do not pull it tight.
Measure flat, not stretched
Smooth out wrinkles first. Width measurements are taken across the front only.
Between two sizes?
Choose the larger size for a relaxed fit or layering, the smaller one for a closer fit.
More sports
Other Size Charts
Questions About Sizing?
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