The right jersey size comes from your chest measurement and the maker's own chart, not from your T-shirt size. Measure, look up the row, then decide whether you want it snug or loose.
Measure in three steps
Measure your chest
Wrap a soft tape around the fullest part of your chest, under the arms, keeping it level and snug but not tight.
Find the maker's chart
Use the chart for the exact brand and league. Our size finder uses Nike's published charts.
Decide on fit
If you land between sizes, go smaller for a closer fit, or larger for a looser fit or to layer underneath.
Nike chest ranges (inches)
| Size | S | M | L | XL |
|---|---|---|---|---|
| Chest | 35–37.5 | 37.5–41 | 41–44 | 44–48.5 |
This is Nike's general men's tops chart. The NBA & WNBA jersey chart uses the same chest ranges but numeric jersey sizes. Women's and youth jerseys have their own charts on the finder.
Sizes differ by sport and tier
| Sport | Where to check |
|---|---|
| Football | NFL size chart |
| Basketball | NBA size chart |
| Baseball | MLB guide: no confirmed numbers, so use the maker's chart |
| Hockey | NHL guide: same |
| Soccer | Soccer guide: adidas lists its MLS jerseys as slim fit |
Editor's note: Tiers fit differently. Closer-to-on-field jerseys are often cut slimmer, so check the listing before you order.
