Does Buck Mason run big or small?

Buck Mason tees run true to size, within ¾″ of other brands at the same size. Buck Mason long sleeves run true to size, within ¾″ of other brands at the same size.

Tees: true to size, within ¾″ of other brands at the same size

SizeBuck Mason chest · lengthOther brands (typical)Buck Mason is
XS37½″ · 26¼″35¼″ · 26″2¼″ roomier
S39½″ · 26¾″37¾″ · 27″1¾″ roomier
M41½″ · 27¼″40¼″ · 27¾″1¼″ roomier
L43½″ · 27¾″43¼″ · 28¾″the same around
XL46½″ · 28½″47″ · 29¾″½″ snugger
XXL49½″ · 29¼″51″ · 30½″1½″ snugger

Buck Mason tees here: 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 Field-Spec 90s Boxy Heavy Tee. Compared with 34 tees from other brands.

Long sleeves and layers: true to size, within ¾″ of other brands at the same size

SizeBuck Mason chest · lengthOther brands (typical)Buck Mason is
XS39″ · 25¾″39¼″ · 25¼″the same around
S41″ · 26¼″41¼″ · 26¼″the same around
M43″ · 26¾″43½″ · 27¼″½″ snugger
L46″ · 27½″46½″ · 28½″½″ snugger
XL49″ · 28¼″50″ · 29¼″1″ snugger
XXL52″ · 29″52″ · 29¾″the same around

Buck Mason long sleeves here: Buck Mason Field-Spec Sandlot Tee. Compared with 4 long sleeves from other brands.

Buck Mason compared with

Champion · Everlane · Hanes · J.Crew · Mack Weldon · Nike · Under Armour · Uniqlo

Get your exact size in any of these

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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.