Champion to Patagonia size
The short answer
Champion XS is Patagonia XXS or XS by the two brands' own charts. 2 of 6 Champion sizes land on a different label at Patagonia.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
| Champion | Champion builds it for | Patagonia, by chart | Same label | Patagonia builds it for | Patagonia also prints |
|---|---|---|---|---|---|
| XS | chest 32 to 36 in, waist 28 to 30 in | XXS or XS | XS | chest 33 in, hip 32 in, sleeve 30 in | not published |
| S | chest 36 to 38 in, waist 30 to 32 in | S | S | chest 37 in, hip 36 in, sleeve 33 in | not published |
| M | chest 38 to 41 in, waist 32 to 35 in | M | M | chest 40 in, hip 39 in, sleeve 34 in | not published |
| L | chest 41 to 45 in, waist 35 to 39 in | L | L | chest 44 in, hip 43 in, sleeve 35 in | not published |
| XL | chest 45 to 49 in, waist 39 to 44 in | XL | XL | chest 47 in, hip 46 in, sleeve 36 in | not published |
| 2XL | chest 49 to 53 in, waist 44 to 48 in | XXL | XXL | chest 50 in, hip 49 in, sleeve 37 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
- Champion size guide, read on 2026-09-18.
- Patagonia size guide, read on 2026-09-18.