District vs Under Armour: which size fits the same?

In tees, a District L is closest to an Under Armour M (¾″ roomier).

Tees

Under Armour tees measure about 3″ more around than District at the same size. A District L is closest to an Under Armour M (¾″ roomier).

DistrictChest · lengthClosest Under ArmourChest · lengthUnder Armour is
District XS34¼″ · 26″none close
District S37¼″ · 27″none close
District M39¼″ · 27¾″Under Armour S40″ · 28¾″¾″ roomier
District L42¼″ · 28¾″Under Armour M43″ · 29¼″¾″ roomier
District XL46″ · 29¾″Under Armour L46″ · 29¾″the same around
District XXL49″ · 30¾″Under Armour XL49″ · 30¾″the same around
District 3XL53″ · 31¼″Under Armour XXL52″ · 31¾″1″ snugger

From District: District Very Important Tee (DT6000), District The Concert Tee (DT5000), District Re-Tee (DT8000). From Under Armour: Under Armour Team Tech Tee (1376842), Under Armour Athletic 2.0 Tee (1383264). Relaxed and oversized cuts are left out.

More: District sizing · Under Armour 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.