adidas vs Uniqlo: which size fits the same?

In polos, an adidas L is closest to an Uniqlo L (1″ snugger).

Polos

adidas polos measure about 1¼″ more around than Uniqlo at the same size. An adidas L is closest to an Uniqlo L (1″ snugger).

adidasChest · lengthClosest UniqloChest · lengthUniqlo is
adidas XS37¾″ · 28″Uniqlo XS37¾″ · 25″the same around
adidas S40¼″ · 28¾″Uniqlo S40¼″ · 26¼″the same around
adidas M43½″ · 29½″Uniqlo M42¾″ · 27″¾″ snugger
adidas L46½″ · 30½″Uniqlo L45½″ · 28¼″1″ snugger
adidas XL49¾″ · 31¼″Uniqlo XL48½″ · 29″1″ snugger
adidas XXL53½″ · 32″Uniqlo 3XL54″ · 30″½″ roomier
adidas 3XL57½″ · 33″none close

From adidas: adidas Ultimate365 Solid Polo (A514), adidas Performance Polo (A230), adidas Performance Piqué Polo (A430). From Uniqlo: Uniqlo DRY-EX Polo Shirt, Uniqlo AIRism Cotton Pique Polo Shirt, Uniqlo DRY Pique Polo Shirt. Relaxed and oversized cuts are left out.

More: adidas sizing · Uniqlo sizing

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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.