Under Armour to Goldwin size
The short answer
Under Armour MD is Goldwin 4 by the two brands' own charts.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
| Under Armour | Under Armour builds it for | Goldwin Japan sizing, by chart | Same label | Goldwin builds it for | Goldwin also prints |
|---|---|---|---|---|---|
| XS | chest 31 to 34 in, waist 28 to 29 in | 0 | not published | chest 31.5 to 34.7 in, waist 26 to 29.1 in, hip 32.3 to 35.4 in | not published |
| SM | chest 34 to 37 in, waist 29 to 31 in | 2 | not published | chest 34.7 to 37.8 in, waist 29.1 to 32.3 in, hip 35.4 to 38.6 in | not published |
| MD | chest 37 to 41 in, waist 31 to 34 in | 4 | not published | chest 37.8 to 40.9 in, waist 32.3 to 35.4 in, hip 38.6 to 41.7 in | not published |
| LG | chest 41 to 44 in, waist 34 to 37 in | 6 | not published | chest 40.9 to 44.1 in, waist 35.4 to 38.6 in, hip 41.7 to 44.9 in | not published |
| XL | chest 44 to 48 in, waist 37 to 41 in | 6 | not published | chest 40.9 to 44.1 in, waist 35.4 to 38.6 in, hip 41.7 to 44.9 in | not published |
| XXL | chest 48 to 52 in, waist 41 to 45.5 in | not made | not published | not published | not published |
| 3XL | chest 52 to 56 in, waist 45.5 to 50 in | not made | not published | not published | not published |
| 4XL | chest 56 to 60 in, waist 50 to 54.5 in | not made | not published | not published | not published |
| 5XL | chest 60 to 64 in, waist 54.5 to 59 in | not made | not published | not published | 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
- Under Armour size guide, read on 2026-09-18. Under Armour on TrueToSize
- Goldwin Japan sizing size guide, read on 2026-09-25.