Adidas to Brooks Brothers size
The short answer
adidas S is Brooks Brothers XS by the two brands' own charts. 4 of 6 adidas sizes land on a different label at Brooks Brothers.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
| adidas | adidas builds it for | Brooks Brothers, by chart | Same label | Brooks Brothers builds it for | Brooks Brothers also prints |
|---|---|---|---|---|---|
| XS | chest 32.5 to 34 in, waist 27.5 to 29 in, hip 32 to 33.5 in | XS | XS | chest 34 to 36 in, waist 28 to 30 in, sleeve 32 in | not published |
| S | chest 34.5 to 36 in, waist 29.5 to 31.5 in, hip 34 to 36 in | XS | S | chest 34 to 36 in, waist 28 to 30 in, sleeve 32 in | not published |
| M | chest 36.5 to 39 in, waist 32 to 34.5 in, hip 36.5 to 39 in | S | M | chest 36 to 38 in, waist 30 to 32 in, sleeve 33 in | not published |
| L | chest 39.5 to 42.5 in, waist 35 to 38 in, hip 39.5 to 42 in | M or L | L | chest 38 to 40 in, waist 32 to 34 in, sleeve 35 in | not published |
| XL | chest 43 to 46.5 in, waist 38.5 to 42 in, hip 42.5 to 45.5 in | XL | XL | chest 44 to 46 in, waist 40 to 42 in, sleeve 36.5 in | not published |
| 2XL | chest 47 to 51 in, waist 42.5 to 47 in, hip 46 to 49 in | XXL | XXL | chest 46 to 48 in, waist 44 to 46 in, sleeve 37 in | not published |
| 3XL | chest 51.5 to 56 in, waist 47.5 to 52 in, hip 49.5 to 53 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
- adidas size guide, read on 2026-09-18. adidas on TrueToSize
- Brooks Brothers size guide, read on 2026-09-18.