J.Crew vs Sport-Tek: which size fits the same?
In tees, a J.Crew L is closest to a Sport-Tek M (½″ snugger). In polos, a J.Crew L is closest to a Sport-Tek M (the same around).
Tees
Sport-Tek tees measure about 2¼″ more around than J.Crew at the same size. A J.Crew L is closest to a Sport-Tek M (½″ snugger).
| J.Crew | Chest · length | Closest Sport-Tek | Chest · length | Sport-Tek is |
|---|---|---|---|---|
| J.Crew XS | 34¾″ · 26″ | none close | ||
| J.Crew S | 37¾″ · 26″ | Sport-Tek XS | 37″ · 27″ | ¾″ snugger |
| J.Crew M | 40¾″ · 26¾″ | Sport-Tek S | 40″ · 28″ | ¾″ snugger |
| J.Crew L | 43½″ · 27¾″ | Sport-Tek M | 43″ · 29″ | ½″ snugger |
| J.Crew XL | 46½″ · 28¾″ | Sport-Tek L | 46″ · 30″ | ½″ snugger |
| J.Crew XXL | 49½″ · 29¼″ | Sport-Tek XL | 49″ · 31″ | ½″ snugger |
From J.Crew: J.Crew Broken-in T-Shirt, J.Crew Broken-in Pocket T-Shirt, J.Crew Vintage-wash Cotton Pocket T-shirt, J.Crew Wallace & Barnes 1950s-fit T-shirt. From Sport-Tek: Sport-Tek PosiCharge Competitor Tee (ST350). Relaxed and oversized cuts are left out.
Polos
Sport-Tek polos measure about 3″ more around than J.Crew at the same size. A J.Crew L is closest to a Sport-Tek M (the same around).
| J.Crew | Chest · length | Closest Sport-Tek | Chest · length | Sport-Tek is |
|---|---|---|---|---|
| J.Crew XS | 34¾″ · 26″ | none close | ||
| J.Crew S | 37¾″ · 26″ | Sport-Tek XS | 37½″ · 28″ | the same around |
| J.Crew M | 40¾″ · 26¾″ | Sport-Tek S | 40½″ · 29″ | the same around |
| J.Crew L | 43½″ · 28″ | Sport-Tek M | 43½″ · 30″ | the same around |
| J.Crew XL | 46½″ · 29″ | Sport-Tek L | 46½″ · 31″ | the same around |
| J.Crew XXL | 49½″ · 29½″ | Sport-Tek XL | 49½″ · 32″ | the same around |
| J.Crew 3XL | 52½″ · 29¼″ | Sport-Tek XXL | 52½″ · 33″ | the same around |
From J.Crew: J.Crew Washed Piqué Polo Shirt, J.Crew Polo Shirt in Pima Cotton. From Sport-Tek: Sport-Tek Micropique Sport-Wick Polo (ST650). Relaxed and oversized cuts are left out.
More: J.Crew sizing · Sport-Tek sizing
Get your exact size in any of these
Add three shirts you own that fit well. FitCard compares their real measurements with every shirt here and tells you the one size to buy, and why, in terms of your own shirts. Free, no tape measure.
Garment measurements: the shirt itself, chest all the way around and length from shoulder to hem, from each brand's own chart or wholesale spec sheet, checked November 2026. Shirts with half or more cotton are shown as they come out of a dryer (about 2% less around and 4% shorter). Brands change their cuts, so check the shop's chart before you buy.