Does Gildan run big or small?

Gildan tees run small, about 1″ snugger around than other brands at the same size. Gildan long sleeves run true to size, within ¾″ of other brands at the same size.

Tees: small, about 1″ snugger around than other brands at the same size

SizeGildan chest · lengthOther brands (typical)Gildan is
XS31¼″ · 26″36¼″ · 26″4¾″ snugger
S35¼″ · 27″37¾″ · 27″2½″ snugger
M39¼″ · 27¾″40¼″ · 27¾″1″ snugger
L43″ · 28¾″43″ · 28¾″the same around
XL47″ · 29¾″47″ · 29½″the same around
XXL51″ · 30¾″50¼″ · 30¼″½″ roomier
3XL55″ · 31¾″55″ · 31¾″the same around

Gildan tees here: Gildan Heavy Cotton T-Shirt (5000), Gildan Ultra Cotton T-Shirt (2000), Gildan Softstyle T-Shirt (64000), Gildan DryBlend T-Shirt (8000). Compared with 69 tees from other brands.

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

SizeGildan chest · lengthOther brands (typical)Gildan is
XS35¼″ · 25″36¾″ · 25½″1½″ snugger
S37¼″ · 26½″39″ · 26¼″1¾″ snugger
M41¼″ · 27¼″42″ · 27″¾″ snugger
L45″ · 28¼″44″ · 28″1″ roomier
XL49″ · 29¼″47″ · 29″2″ roomier
XXL53″ · 30¼″50″ · 29½″3″ roomier
3XL56¾″ · 31¼″55¾″ · 31″1″ roomier

Gildan long sleeves here: Gildan Heavy Cotton Long Sleeve T-Shirt (5400), Gildan Ultra Cotton Long Sleeve T-Shirt (2400), Gildan Heavy Blend Hooded Sweatshirt (18500), Gildan Heavy Blend Crewneck Sweatshirt (18000). Compared with 25 long sleeves from other brands.

Gildan compared with

Asket · Bella+Canvas · Buck Mason · Carhartt · Champion · Comfort Colors · District · Everlane · Hanes · J.Crew · Mack Weldon · Next Level · Nike · Polo Ralph Lauren · Port & Company · Quince · Sport-Tek · Sunspel · Taylor Stitch · Todd Snyder · 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.