Nike to Champion size
The short answer
Nike XXS is Champion XS by the two brands' own charts. 3 of 8 Nike sizes land on a different label at Champion.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
| Nike | Nike builds it for | Champion, by chart | Same label | Champion builds it for | Champion also prints |
|---|---|---|---|---|---|
| XXS | chest 28.1 to 31.5 in, waist 22.5 to 25.5 in, hip 28.5 to 31.5 in | XS | not published | chest 32 to 36 in, waist 28 to 30 in | not published |
| XS | chest 31.5 to 35 in, waist 25.5 to 29 in, hip 31.5 to 35 in | XS | XS | chest 32 to 36 in, waist 28 to 30 in | not published |
| S | chest 35 to 37.5 in, waist 29 to 32 in, hip 35 to 37.5 in | S | S | chest 36 to 38 in, waist 30 to 32 in | not published |
| M | chest 37.5 to 41 in, waist 32 to 35 in, hip 37.5 to 41 in | M | M | chest 38 to 41 in, waist 32 to 35 in | not published |
| L | chest 41 to 44 in, waist 35 to 38 in, hip 41 to 44 in | L | L | chest 41 to 45 in, waist 35 to 39 in | not published |
| XL | chest 44 to 48.5 in, waist 38 to 43 in, hip 44 to 47 in | XL | XL | chest 45 to 49 in, waist 39 to 44 in | not published |
| XXL | chest 48.5 to 53.5 in, waist 43 to 47.5 in, hip 47 to 50.5 in | 2XL | 2XL | chest 49 to 53 in, waist 44 to 48 in | not published |
| 3XL | chest 53.5 to 58 in, waist 47.5 to 52.5 in, hip 50.5 to 53.5 in | 2XL | not published | chest 49 to 53 in, waist 44 to 48 in | not published |
| 4XL | chest 58 to 63 in, waist 52.5 to 57 in, hip 53.5 to 58.5 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
- Nike size guide, read on 2026-09-18. Nike on TrueToSize
- Champion size guide, read on 2026-09-18.