Sport-Tek vs Sunspel: which size fits the same?
In tees, a Sport-Tek L is closest to a Sunspel XXL (the same around). In polos, a Sport-Tek L is closest to a Sunspel XL (1¼″ snugger).
Tees
Sport-Tek tees measure about 4½″ more around than Sunspel at the same size. A Sport-Tek L is closest to a Sunspel XXL (the same around).
| Sport-Tek | Chest · length | Closest Sunspel | Chest · length | Sunspel is |
|---|---|---|---|---|
| Sport-Tek XS | 37″ · 27″ | Sunspel S | 37″ · 26¾″ | the same around |
| Sport-Tek S | 40″ · 28″ | Sunspel M | 39½″ · 27″ | ½″ snugger |
| Sport-Tek M | 43″ · 29″ | Sunspel XL | 44″ · 28½″ | 1″ roomier |
| Sport-Tek L | 46″ · 30″ | Sunspel XXL | 46¼″ · 29¼″ | the same around |
| Sport-Tek XL | 49″ · 31″ | Sunspel 3XL | 48½″ · 30″ | ½″ snugger |
| Sport-Tek XXL | 52″ · 32″ | none close | ||
| Sport-Tek 3XL | 56″ · 32½″ | none close |
From Sport-Tek: Sport-Tek PosiCharge Competitor Tee (ST350). From Sunspel: Sunspel Classic T-Shirt. Relaxed and oversized cuts are left out.
Polos
Sport-Tek polos measure about 4¼″ more around than Sunspel at the same size. A Sport-Tek L is closest to a Sunspel XL (1¼″ snugger).
| Sport-Tek | Chest · length | Closest Sunspel | Chest · length | Sunspel is |
|---|---|---|---|---|
| Sport-Tek XS | 37½″ · 28″ | Sunspel S | 37″ · 26½″ | ½″ snugger |
| Sport-Tek S | 40½″ · 29″ | Sunspel M | 39¾″ · 27¼″ | ¾″ snugger |
| Sport-Tek M | 43½″ · 30″ | Sunspel L | 42½″ · 28″ | 1″ snugger |
| Sport-Tek L | 46½″ · 31″ | Sunspel XL | 45¼″ · 28¾″ | 1¼″ snugger |
| Sport-Tek XL | 49½″ · 32″ | Sunspel 3XL | 50¼″ · 30¼″ | ¾″ roomier |
| Sport-Tek XXL | 52½″ · 33″ | none close | ||
| Sport-Tek 3XL | 56½″ · 33½″ | none close |
From Sport-Tek: Sport-Tek Micropique Sport-Wick Polo (ST650). From Sunspel: Sunspel Riviera Polo Shirt (Slim Fit). Relaxed and oversized cuts are left out.
More: Sport-Tek sizing · Sunspel 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.