Buck Mason vs Next Level: which size fits the same?
In tees, a Buck Mason L is closest to a Next Level L (½″ snugger). In long sleeves, a Buck Mason L is closest to a Next Level XL (1¼″ roomier).
Tees
Buck Mason tees measure about ¾″ more around than Next Level at the same size. A Buck Mason L is closest to a Next Level L (½″ snugger).
| Buck Mason | Chest · length | Closest Next Level | Chest · length | Next Level is |
|---|---|---|---|---|
| Buck Mason XS | 37½″ · 26″ | Next Level S | 37¼″ · 27″ | the same around |
| Buck Mason S | 39½″ · 26½″ | Next Level M | 40¼″ · 27¾″ | ¾″ roomier |
| Buck Mason M | 41½″ · 27″ | Next Level M | 40¼″ · 27¾″ | 1¼″ snugger |
| Buck Mason L | 43½″ · 27½″ | Next Level L | 43″ · 28¾″ | ½″ snugger |
| Buck Mason XL | 46½″ · 28¼″ | Next Level XL | 47″ · 29¾″ | ½″ roomier |
| Buck Mason XXL | 49½″ · 29″ | Next Level XXL | 51″ · 30¾″ | 1½″ roomier |
From Buck Mason: Buck Mason Pima Classic Tee, Buck Mason Slub Curved Hem Tee, Buck Mason Pima Curved Hem Tee, Buck Mason Toughknit Classic Tee, Buck Mason Yuma Hemp Cotton Classic Tee, Buck Mason Field-Spec Cotton Heavy Tee, Buck Mason Slub Classic Tee. From Next Level: Next Level Cotton Tee (3600), Next Level CVC Tee (6210). Relaxed and oversized cuts are left out.
Long sleeves and layers
Buck Mason long sleeves measure about 2¾″ more around than Next Level at the same size. A Buck Mason L is closest to a Next Level XL (1¼″ roomier).
| Buck Mason | Chest · length | Closest Next Level | Chest · length | Next Level is |
|---|---|---|---|---|
| Buck Mason XS | 38″ · 25¼″ | Next Level M | 39¼″ · 27¾″ | 1¼″ roomier |
| Buck Mason S | 39¾″ · 25¾″ | Next Level M | 39¼″ · 27¾″ | ¾″ snugger |
| Buck Mason M | 41¾″ · 26¼″ | Next Level L | 42¼″ · 28¾″ | the same around |
| Buck Mason L | 44¾″ · 27″ | Next Level XL | 46″ · 29¾″ | 1¼″ roomier |
| Buck Mason XL | 47¾″ · 27¾″ | Next Level XL | 46″ · 29¾″ | 1¾″ snugger |
| Buck Mason XXL | 50¾″ · 28½″ | Next Level XXL | 50″ · 30¾″ | ¾″ snugger |
From Buck Mason: Buck Mason Field-Spec Sandlot Tee, Buck Mason Field-Spec Rugby Polo, Buck Mason Welterweight Hooded Sweatshirt, Buck Mason Vintage Thermal Henley. From Next Level: Next Level Cotton Long Sleeve Tee (3601). Relaxed and oversized cuts are left out.
More: Buck Mason sizing · Next Level 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.