Brooks Brothers to DESCENTE size
The short answer
Brooks Brothers XS is DESCENTE S by the two brands' own charts. 5 of 5 Brooks Brothers sizes land on a different label at DESCENTE.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
On 2 sizes the charts land two or more sizes from the same label. Brands do not measure the body the same way, so on those rows treat the chart answer and the same label as the two ends of a range.
| Brooks Brothers | Brooks Brothers builds it for | DESCENTE Japan sizing, by chart | Same label | DESCENTE builds it for | DESCENTE also prints |
|---|---|---|---|---|---|
| XS | chest 34 to 36 in, waist 28 to 30 in, sleeve 32 in | S | not published | chest 33.5 to 35.8 in, waist 28 to 30.3 in | not published |
| S | chest 36 to 38 in, waist 30 to 32 in, sleeve 33 in | M | S | chest 35 to 37.4 in, waist 29.5 to 31.9 in | not published |
| M | chest 38 to 40 in, waist 32 to 34 in, sleeve 35 in | O | M | chest 38.2 to 40.6 in, waist 32.7 to 35 in | not published |
| L | chest 42 to 44 in, waist 36 to 38 in, sleeve 36 in | 2XO(XA) | L | chest 41.3 to 43.7 in, waist 35.8 to 38.2 in | not published |
| XL | chest 44 to 46 in, waist 40 to 42 in, sleeve 36.5 in | 2XO(XA) | not published | chest 41.3 to 43.7 in, waist 35.8 to 38.2 in | not published |
| XXL | chest 46 to 48 in, waist 44 to 46 in, sleeve 37 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
- Brooks Brothers size guide, read on 2026-09-18.
- DESCENTE Japan sizing size guide, read on 2026-09-25.