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

In tees, a J.Crew L is closest to a Nike L (¾″ roomier). In polos, a J.Crew L is closest to a Nike M (the same around).

Tees

J.Crew and Nike tees measure about the same at the same size (within ¾″ around). A J.Crew L is closest to a Nike L (¾″ roomier).

J.CrewChest · lengthClosest NikeChest · lengthNike is
J.Crew XS34¾″ · 26″Nike XS33¼″ · 26″1½″ snugger
J.Crew S37¾″ · 26″Nike S37¾″ · 27½″the same around
J.Crew M40¾″ · 26¾″Nike M40½″ · 27½″the same around
J.Crew L43½″ · 27¾″Nike L44¼″ · 28¾″¾″ roomier
J.Crew XL46½″ · 28¾″Nike XL48¼″ · 29½″1¾″ roomier
J.Crew XXL49½″ · 29¼″Nike XL48¼″ · 29½″1¼″ snugger

From J.Crew: J.Crew Broken-in T-Shirt, J.Crew Broken-in Pocket T-Shirt. From Nike: Nike Team rLegend Tee, Nike Legend Tee, Nike Core Cotton Tee. Relaxed and oversized cuts are left out.

Polos

Nike polos measure about 3½″ more around than J.Crew at the same size. A J.Crew L is closest to a Nike M (the same around).

J.CrewChest · lengthClosest NikeChest · lengthNike is
J.Crew XS34¾″ · 26″none close
J.Crew S37¾″ · 26″Nike XS37″ · 28¾″¾″ snugger
J.Crew M40¾″ · 26¾″Nike S40¼″ · 29¼″½″ snugger
J.Crew L43½″ · 27¾″Nike M43¼″ · 29½″the same around
J.Crew XL46½″ · 28¾″Nike L46½″ · 30¼″the same around
J.Crew XXL49½″ · 29¼″Nike XL50½″ · 31½″1″ roomier
J.Crew 3XL52½″ · 29¼″Nike XL50½″ · 31½″2″ snugger

From J.Crew: J.Crew Washed Piqué Polo Shirt. From Nike: Nike Dri-FIT Micro Pique 2.0 Polo, Nike Dri-FIT Victory Solid Polo, Nike Dri-FIT Legacy Polo, Nike Dri-FIT Vertical Mesh Polo, Nike Dry Essential Solid Polo. Relaxed and oversized cuts are left out.

More: J.Crew sizing · Nike 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.