Next Level vs Uniqlo: which size fits the same?

In tees, a Next Level L is closest to a Uniqlo M (1½″ snugger). In long sleeves, a Next Level L is closest to a Uniqlo S (the same around).

Tees

Uniqlo tees measure about 1″ more around than Next Level at the same size. A Next Level L is closest to a Uniqlo M (1½″ snugger).

Next LevelChest · lengthClosest UniqloChest · lengthUniqlo is
Next Level XS34¼″ · 26″none close
Next Level S37¼″ · 27″Uniqlo XS37¼″ · 25″the same around
Next Level M40¼″ · 27¾″Uniqlo S39¼″ · 26¼″1″ snugger
Next Level L43″ · 28¾″Uniqlo M41¾″ · 27¼″1½″ snugger
Next Level XL47″ · 29¾″Uniqlo XL48″ · 29″1″ roomier
Next Level XXL51″ · 30¾″Uniqlo XXL51″ · 29″the same around
Next Level 3XL55″ · 31¾″Uniqlo 3XL54″ · 30″1″ snugger

From Next Level: Next Level Cotton Tee (3600), Next Level CVC Tee (6210). From Uniqlo: Uniqlo AIRism Cotton Crew Neck T-Shirt, Uniqlo AIRism T-Shirt, Uniqlo SUPIMA Cotton T-Shirt, Uniqlo DRY-EX T-Shirt, Uniqlo DRY Color T-Shirt, Uniqlo DRY Waffle Henley T-Shirt, Uniqlo Crew Neck Short-Sleeve T-Shirt. Relaxed and oversized cuts are left out.

Long sleeves and layers

Uniqlo long sleeves measure about 4½″ more around than Next Level at the same size. A Next Level L is closest to a Uniqlo S (the same around).

Next LevelChest · lengthClosest UniqloChest · lengthUniqlo is
Next Level XS33¼″ · 26″none close
Next Level S36¼″ · 27″none close
Next Level M39¼″ · 27¾″Uniqlo XS39¾″ · 25″½″ roomier
Next Level L42¼″ · 28¾″Uniqlo S42″ · 25¾″the same around
Next Level XL46″ · 29¾″Uniqlo L47¼″ · 28¼″1¼″ roomier
Next Level XXL50″ · 30¾″Uniqlo XL50½″ · 29″½″ roomier
Next Level 3XL54″ · 31¾″Uniqlo XXL52¾″ · 29¼″1¼″ snugger

From Next Level: Next Level Cotton Long Sleeve Tee (3601). From Uniqlo: Uniqlo Waffle T-Shirt | Long Sleeve, Uniqlo AIRism Cotton T-Shirt | Long Sleeve, Uniqlo Waffle Henley Neck T-Shirt | Long Sleeve, Uniqlo Sweatshirt. Relaxed and oversized cuts are left out.

More: Next Level 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.