Asket vs Sport-Tek: which size fits the same?
In tees, an Asket L is closest to a Sport-Tek M (½″ roomier). In polos, an Asket L is closest to a Sport-Tek M (1″ roomier).
Tees
Sport-Tek tees measure about 3¼″ more around than Asket at the same size. An Asket L is closest to a Sport-Tek M (½″ roomier).
| Asket | Chest · length | Closest Sport-Tek | Chest · length | Sport-Tek is |
|---|---|---|---|---|
| Asket XS | 35½″ · 23¾″ | Sport-Tek XS | 37″ · 27″ | 1½″ roomier |
| Asket S | 37¾″ · 25″ | Sport-Tek XS | 37″ · 27″ | ¾″ snugger |
| Asket M | 40″ · 26″ | Sport-Tek S | 40″ · 28″ | the same around |
| Asket L | 42½″ · 27¼″ | Sport-Tek M | 43″ · 29″ | ½″ roomier |
| Asket XL | 44¾″ · 28¼″ | Sport-Tek L | 46″ · 30″ | 1¼″ roomier |
| Asket XXL | 47″ · 29½″ | Sport-Tek L | 46″ · 30″ | 1″ snugger |
From Asket: Asket The T-Shirt. From Sport-Tek: Sport-Tek PosiCharge Competitor Tee (ST350). Relaxed and oversized cuts are left out.
Polos
Sport-Tek polos measure about 3¾″ more around than Asket at the same size. An Asket L is closest to a Sport-Tek M (1″ roomier).
| Asket | Chest · length | Closest Sport-Tek | Chest · length | Sport-Tek is |
|---|---|---|---|---|
| Asket XS | 35½″ · 23¾″ | none close | ||
| Asket S | 37¾″ · 25″ | Sport-Tek XS | 37½″ · 28″ | the same around |
| Asket M | 40″ · 26″ | Sport-Tek S | 40½″ · 29″ | ½″ roomier |
| Asket L | 42½″ · 27¼″ | Sport-Tek M | 43½″ · 30″ | 1″ roomier |
| Asket XL | 44¾″ · 28¼″ | Sport-Tek M | 43½″ · 30″ | 1¼″ snugger |
| Asket XXL | 47″ · 29½″ | Sport-Tek L | 46½″ · 31″ | ½″ snugger |
From Asket: Asket The Pique Polo. From Sport-Tek: Sport-Tek Micropique Sport-Wick Polo (ST650). Relaxed and oversized cuts are left out.
More: Asket 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.