adidas vs Sport-Tek: which size fits the same?
In polos, an adidas L is closest to a Sport-Tek L (the same around).
Polos
adidas and Sport-Tek polos measure about the same at the same size (within ¾″ around). An adidas L is closest to a Sport-Tek L (the same around).
| adidas | Chest · length | Closest Sport-Tek | Chest · length | Sport-Tek is |
|---|---|---|---|---|
| adidas XS | 37¾″ · 28″ | Sport-Tek XS | 37½″ · 28″ | the same around |
| adidas S | 40¼″ · 28¾″ | Sport-Tek S | 40½″ · 29″ | ½″ roomier |
| adidas M | 43½″ · 29½″ | Sport-Tek M | 43½″ · 30″ | the same around |
| adidas L | 46½″ · 30½″ | Sport-Tek L | 46½″ · 31″ | the same around |
| adidas XL | 49¾″ · 31¼″ | Sport-Tek XL | 49½″ · 32″ | the same around |
| adidas XXL | 53½″ · 32″ | Sport-Tek XXL | 52½″ · 33″ | 1″ snugger |
| adidas 3XL | 57½″ · 33″ | Sport-Tek 3XL | 56½″ · 33½″ | 1″ snugger |
From adidas: adidas Ultimate365 Solid Polo (A514), adidas Performance Polo (A230), adidas Performance Piqué Polo (A430). From Sport-Tek: Sport-Tek Micropique Sport-Wick Polo (ST650). Relaxed and oversized cuts are left out.
More: adidas 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.