Mack Weldon vs Sunspel: which size fits the same?
In tees, a Mack Weldon L is closest to a Sunspel L (the same around). In polos, a Mack Weldon L is closest to a Sunspel XL (the same around).
Tees
Mack Weldon and Sunspel tees measure about the same at the same size (within ¾″ around). A Mack Weldon L is closest to a Sunspel L (the same around).
| Mack Weldon | Chest · length | Closest Sunspel | Chest · length | Sunspel is |
|---|---|---|---|---|
| Mack Weldon S | 38″ · 28″ | Sunspel S | 37″ · 26¾″ | 1″ snugger |
| Mack Weldon M | 40″ · 29″ | Sunspel M | 39½″ · 27″ | ½″ snugger |
| Mack Weldon L | 42″ · 29¾″ | Sunspel L | 41¾″ · 27¾″ | the same around |
| Mack Weldon XL | 44″ · 30½″ | Sunspel XL | 44″ · 28½″ | the same around |
| Mack Weldon XXL | 46″ · 31″ | Sunspel XXL | 46¼″ · 29¼″ | the same around |
From Mack Weldon: Mack Weldon SILVER Crew Neck T-Shirt, Mack Weldon Pima Crew Neck T-Shirt, Mack Weldon Pima Short Sleeve Henley. From Sunspel: Sunspel Classic T-Shirt. Relaxed and oversized cuts are left out.
Polos
Mack Weldon polos measure about 3″ more around than Sunspel at the same size. A Mack Weldon L is closest to a Sunspel XL (the same around).
| Mack Weldon | Chest · length | Closest Sunspel | Chest · length | Sunspel is |
|---|---|---|---|---|
| Mack Weldon S | 41″ · 27½″ | Sunspel M | 39¾″ · 27¼″ | 1¼″ snugger |
| Mack Weldon M | 43″ · 28½″ | Sunspel L | 42½″ · 28″ | ½″ snugger |
| Mack Weldon L | 45½″ · 29¾″ | Sunspel XL | 45¼″ · 28¾″ | the same around |
| Mack Weldon XL | 48″ · 30½″ | Sunspel XXL | 47¾″ · 29½″ | the same around |
| Mack Weldon XXL | 50″ · 31″ | Sunspel 3XL | 50¼″ · 30¼″ | the same around |
From Mack Weldon: Mack Weldon Heavyweight Slub Polo, Mack Weldon SILVER Pique Polo. From Sunspel: Sunspel Riviera Polo Shirt (Slim Fit). Relaxed and oversized cuts are left out.
More: Mack Weldon 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.