Does Sport-Tek run big or small?
Sport-Tek tees run big, about 2″ roomier around than other brands at the same size. Sport-Tek polos run true to size, within ¾″ of other brands at the same size.
Tees: big, about 2″ roomier around than other brands at the same size
| Size | Sport-Tek chest · length | Other brands (typical) | Sport-Tek is |
|---|---|---|---|
| XS | 37″ · 27″ | 35¾″ · 26″ | 1¼″ roomier |
| S | 40″ · 28″ | 37¾″ · 27″ | 2¼″ roomier |
| M | 43″ · 29″ | 40¼″ · 27¾″ | 2¾″ roomier |
| L | 46″ · 30″ | 43″ · 28¾″ | 3″ roomier |
| XL | 49″ · 31″ | 47″ · 29¾″ | 2″ roomier |
| XXL | 52″ · 32″ | 50½″ · 30½″ | 1½″ roomier |
| 3XL | 56″ · 32½″ | 55″ · 31¾″ | 1″ roomier |
Sport-Tek tees here: Sport-Tek PosiCharge Competitor Tee (ST350). Compared with 72 tees from other brands.
Polos: true to size, within ¾″ of other brands at the same size
| Size | Sport-Tek chest · length | Other brands (typical) | Sport-Tek is |
|---|---|---|---|
| XS | 37½″ · 28″ | 37″ · 27½″ | ½″ roomier |
| S | 40½″ · 29″ | 40″ · 28¼″ | ½″ roomier |
| M | 43½″ · 30″ | 42½″ · 29″ | 1″ roomier |
| L | 46½″ · 31″ | 45½″ · 29¾″ | 1″ roomier |
| XL | 49½″ · 32″ | 48½″ · 30¾″ | 1″ roomier |
| XXL | 52½″ · 33″ | 51½″ · 31¾″ | 1″ roomier |
| 3XL | 56½″ · 33½″ | 56¾″ · 33″ | the same around |
Sport-Tek polos here: Sport-Tek Micropique Sport-Wick Polo (ST650). Compared with 33 polos from other brands.
Sport-Tek compared with
adidas · Asket · Bella+Canvas · Buck Mason · Carhartt · Champion · Comfort Colors · District · Everlane · Gildan · Hanes · J.Crew · Mack Weldon · Next Level · Nike · Polo Ralph Lauren · Port & Company · Port Authority · Quince · Sunspel · Taylor Stitch · Todd Snyder · TravisMathew · Under Armour · Uniqlo
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.