adidas vs J.Crew: which size fits the same?

In polos, an adidas L is closest to a J.Crew XL (the same around).

Polos

adidas polos measure about 3¼″ more around than J.Crew at the same size. An adidas L is closest to a J.Crew XL (the same around).

adidasChest · lengthClosest J.CrewChest · lengthJ.Crew is
adidas XS37¾″ · 28″J.Crew S37¾″ · 26″the same around
adidas S40¼″ · 28¾″J.Crew M40¾″ · 26¾″½″ roomier
adidas M43½″ · 29½″J.Crew L43½″ · 27¾″the same around
adidas L46½″ · 30½″J.Crew XL46½″ · 28¾″the same around
adidas XL49¾″ · 31¼″J.Crew XXL49½″ · 29¼″the same around
adidas XXL53½″ · 32″J.Crew 3XL52½″ · 29¼″1″ snugger
adidas 3XL57½″ · 33″none close

From adidas: adidas Ultimate365 Solid Polo (A514), adidas Performance Polo (A230), adidas Performance Piqué Polo (A430). From J.Crew: J.Crew Washed Piqué Polo Shirt. Relaxed and oversized cuts are left out.

More: adidas sizing · J.Crew 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.