DESCENTE to Gymshark size
The short answer
DESCENTE M is Gymshark XS by the two brands' own charts. 5 of 5 DESCENTE sizes land on a different label at Gymshark.
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.
| DESCENTE Japan sizing | DESCENTE builds it for | Gymshark, by chart | Same label | Gymshark builds it for | Gymshark also prints |
|---|---|---|---|---|---|
| S | chest 33.5 to 35.8 in, waist 28 to 30.3 in | not made | S | not published | not published |
| M | chest 35 to 37.4 in, waist 29.5 to 31.9 in | XS | M | chest 37 in, waist 29.5 in | not published |
| L | chest 36.6 to 39 in, waist 31.1 to 33.5 in | XS or S | L | chest 37 in, waist 29.5 in | not published |
| O | chest 38.2 to 40.6 in, waist 32.7 to 35 in | S | not published | chest 39 in, waist 31.5 in | not published |
| XO | chest 39.8 to 42.1 in, waist 34.3 to 36.6 in | M | not published | chest 41 in, waist 33.5 in | not published |
| 2XO(XA) | chest 41.3 to 43.7 in, waist 35.8 to 38.2 in | L | not published | chest 43 in, waist 35.5 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
- DESCENTE Japan sizing size guide, read on 2026-09-25.
- Gymshark size guide, read on 2026-09-18. Gymshark on TrueToSize