Champion to adidas size
The short answer
Champion S is adidas M by the two brands' own charts. 4 of 6 Champion sizes land on a different label at adidas.
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 | adidas, by chart | Same label | adidas builds it for | adidas also prints |
|---|---|---|---|---|---|
| XS | chest 32 to 36 in, waist 28 to 30 in | XS | XS | chest 32.5 to 34 in, waist 27.5 to 29 in, hip 32 to 33.5 in | not published |
| S | chest 36 to 38 in, waist 30 to 32 in | M | S | chest 36.5 to 39 in, waist 32 to 34.5 in, hip 36.5 to 39 in | not published |
| M | chest 38 to 41 in, waist 32 to 35 in | L | M | chest 39.5 to 42.5 in, waist 35 to 38 in, hip 39.5 to 42 in | not published |
| L | chest 41 to 45 in, waist 35 to 39 in | XL | L | chest 43 to 46.5 in, waist 38.5 to 42 in, hip 42.5 to 45.5 in | not published |
| XL | chest 45 to 49 in, waist 39 to 44 in | 2XL | XL | chest 47 to 51 in, waist 42.5 to 47 in, hip 46 to 49 in | not published |
| 2XL | chest 49 to 53 in, waist 44 to 48 in | 2XL | 2XL | chest 47 to 51 in, waist 42.5 to 47 in, hip 46 to 49 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.
- adidas size guide, read on 2026-09-18. adidas on TrueToSize