Abercrombie & Fitch to Under Armour size
The short answer
Abercrombie & Fitch XXS is Under Armour XS by the two brands' own charts. 5 of 8 Abercrombie & Fitch sizes land on a different label at Under Armour.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
| Abercrombie & Fitch | Abercrombie & Fitch builds it for | Under Armour, by chart | Same label | Under Armour builds it for | Under Armour also prints |
|---|---|---|---|---|---|
| XXS | chest 28.4 to 31.5 in, sleeve 31.1 in | XS | not published | chest 31 to 34 in, waist 28 to 29 in | not published |
| XS | chest 31.5 to 34.7 in, sleeve 31.9 in | XS | XS | chest 31 to 34 in, waist 28 to 29 in | not published |
| S | chest 34.7 to 37.4 in, sleeve 33.1 in | SM | not published | chest 34 to 37 in, waist 29 to 31 in | not published |
| M | chest 37.4 to 40.6 in, sleeve 33.9 in | MD | not published | chest 37 to 41 in, waist 31 to 34 in | not published |
| L | chest 40.6 to 43.3 in, sleeve 35 in | LG | not published | chest 41 to 44 in, waist 34 to 37 in | not published |
| XL | chest 43.3 to 46.5 in, sleeve 35.8 in | XL | XL | chest 44 to 48 in, waist 37 to 41 in | not published |
| XXL | chest 46.5 to 49.6 in, sleeve 36.6 in | XXL | XXL | chest 48 to 52 in, waist 41 to 45.5 in | not published |
| 3XL | chest 49.6 to 52.4 in, sleeve 36.6 in | XXL | 3XL | chest 48 to 52 in, waist 41 to 45.5 in | not published |
What wearers say
Charts describe a garment, not a fit. We do not collect fit reports for this category yet, so this table is the two brands' own claims and nothing more.
Sources
- Abercrombie & Fitch size guide, read on 2026-09-18.
- Under Armour size guide, read on 2026-09-18. Under Armour on TrueToSize