Buck Mason vs Port & Company: which size fits the same?
In tees, a Buck Mason L is closest to a Port & Company L (½″ snugger). In long sleeves, a Buck Mason L is closest to a Port & Company M (1¾″ snugger).
Tees
Buck Mason tees measure about 1″ more around than Port & Company at the same size. A Buck Mason L is closest to a Port & Company L (½″ snugger).
| Buck Mason | Chest · length | Closest Port & Company | Chest · length | Port & Company is |
|---|---|---|---|---|
| Buck Mason XS | 37½″ · 26″ | Port & Company M | 39¼″ · 27¾″ | 1¾″ roomier |
| Buck Mason S | 39½″ · 26½″ | Port & Company M | 39¼″ · 27¾″ | the same around |
| Buck Mason M | 41½″ · 27″ | Port & Company L | 43″ · 28¾″ | 1½″ roomier |
| Buck Mason L | 43½″ · 27½″ | Port & Company L | 43″ · 28¾″ | ½″ snugger |
| Buck Mason XL | 46½″ · 28¼″ | Port & Company XL | 47″ · 29¾″ | ½″ roomier |
| Buck Mason XXL | 49½″ · 29″ | Port & Company 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 Port & Company: Port & Company Core Cotton Tee (PC54), Port & Company Essential Tee (PC61), Port & Company Core Blend Tee (PC55), Port & Company Fan Favorite Tee (PC450). Relaxed and oversized cuts are left out.
Long sleeves and layers
Port & Company long sleeves measure about 2″ more around than Buck Mason at the same size. A Buck Mason L is closest to a Port & Company M (1¾″ snugger).
| Buck Mason | Chest · length | Closest Port & Company | Chest · length | Port & Company is |
|---|---|---|---|---|
| Buck Mason XS | 38″ · 25¼″ | Port & Company S | 39¼″ · 26¼″ | 1¼″ roomier |
| Buck Mason S | 39¾″ · 25¾″ | Port & Company S | 39¼″ · 26¼″ | ¾″ snugger |
| Buck Mason M | 41¾″ · 26¼″ | Port & Company M | 43″ · 27″ | 1¼″ roomier |
| Buck Mason L | 44¾″ · 27″ | Port & Company M | 43″ · 27″ | 1¾″ snugger |
| Buck Mason XL | 47¾″ · 27¾″ | Port & Company L | 47″ · 28″ | ¾″ snugger |
| Buck Mason XXL | 50¾″ · 28½″ | Port & Company XL | 51″ · 29″ | the same around |
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 Port & Company: Port & Company Core Fleece Pullover Hooded Sweatshirt (PC78H). Relaxed and oversized cuts are left out.
More: Buck Mason sizing · Port & Company 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.