Quince vs Under Armour: which size fits the same?

In tees, a Quince L is closest to an Under Armour M (the same around).

Tees

Under Armour tees measure about 2″ more around than Quince at the same size. A Quince L is closest to an Under Armour M (the same around).

QuinceChest · lengthClosest Under ArmourChest · lengthUnder Armour is
Quince XS36¾″ · 25½″none close
Quince S38¾″ · 26½″Under Armour S40″ · 28¾″1¼″ roomier
Quince M40¾″ · 27¼″Under Armour S40″ · 28¾″¾″ snugger
Quince L42¾″ · 28¼″Under Armour M43″ · 29¼″the same around
Quince XL46½″ · 29¼″Under Armour L46″ · 29¾″½″ snugger
Quince XXL50½″ · 30¼″Under Armour XL49″ · 30¾″1½″ snugger
Quince 3XL54½″ · 31¼″Under Armour 3XL55″ · 32¾″½″ roomier

From Quince: Quince Cotton Modal Crew Neck Tee, Quince Organic Cotton Slub Crewneck Tee. From Under Armour: Under Armour Team Tech Tee (1376842), Under Armour Athletic 2.0 Tee (1383264). Relaxed and oversized cuts are left out.

More: Quince 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.