Mack Weldon vs Nike: which size fits the same?
In tees, a Mack Weldon L is closest to a Nike M (1½″ snugger). In polos, a Mack Weldon L is closest to a Nike L (1″ roomier).
Tees
Nike tees measure about 2½″ more around than Mack Weldon at the same size. A Mack Weldon L is closest to a Nike M (1½″ snugger).
| Mack Weldon | Chest · length | Closest Nike | Chest · length | Nike is |
|---|---|---|---|---|
| Mack Weldon S | 38″ · 28″ | Nike S | 37¾″ · 27½″ | the same around |
| Mack Weldon M | 40″ · 29″ | Nike M | 40½″ · 27½″ | ½″ roomier |
| Mack Weldon L | 42″ · 29¾″ | Nike M | 40½″ · 27½″ | 1½″ snugger |
| Mack Weldon XL | 44″ · 30½″ | Nike L | 44¼″ · 28¾″ | the same around |
| Mack Weldon XXL | 46″ · 31″ | Nike L | 44¼″ · 28¾″ | 1¾″ snugger |
From Mack Weldon: Mack Weldon SILVER Crew Neck T-Shirt, Mack Weldon Pima Crew Neck T-Shirt, Mack Weldon Pima Short Sleeve Henley. From Nike: Nike Team rLegend Tee, Nike Legend Tee, Nike Core Cotton Tee. Relaxed and oversized cuts are left out.
Polos
Nike polos measure about 1½″ more around than Mack Weldon at the same size. A Mack Weldon L is closest to a Nike L (1″ roomier).
| Mack Weldon | Chest · length | Closest Nike | Chest · length | Nike is |
|---|---|---|---|---|
| Mack Weldon S | 41″ · 27½″ | Nike S | 40¼″ · 29¼″ | ¾″ snugger |
| Mack Weldon M | 43″ · 28½″ | Nike M | 43¼″ · 29½″ | the same around |
| Mack Weldon L | 45½″ · 29¾″ | Nike L | 46½″ · 30¼″ | 1″ roomier |
| Mack Weldon XL | 48″ · 30½″ | Nike L | 46½″ · 30¼″ | 1½″ snugger |
| Mack Weldon XXL | 50″ · 31″ | Nike XL | 50½″ · 31½″ | ½″ roomier |
From Mack Weldon: Mack Weldon Heavyweight Slub Polo, Mack Weldon SILVER Pique Polo. From Nike: Nike Dri-FIT Micro Pique 2.0 Polo, Nike Dri-FIT Victory Solid Polo, Nike Dri-FIT Legacy Polo, Nike Dri-FIT Vertical Mesh Polo, Nike Dry Essential Solid Polo. Relaxed and oversized cuts are left out.
More: Mack Weldon sizing · Nike 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.