DESCENTE to Old Navy size
The short answer
DESCENTE S is Old Navy XS by the two brands' own charts. 6 of 6 DESCENTE sizes land on a different label at Old Navy.
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 | Old Navy, by chart | Same label | Old Navy builds it for | Old Navy also prints |
|---|---|---|---|---|---|
| S | chest 33.5 to 35.8 in, waist 28 to 30.3 in | XS | S | chest 36 to 37 in, neck 13 to 13.5 in, sleeve 31.5 to 32 in | not published |
| M | chest 35 to 37.4 in, waist 29.5 to 31.9 in | XS | M | chest 36 to 37 in, neck 13 to 13.5 in, sleeve 31.5 to 32 in | not published |
| L | chest 36.6 to 39 in, waist 31.1 to 33.5 in | S | L | chest 38 to 39 in, neck 14 to 14.5 in, sleeve 32.5 to 33 in | not published |
| O | chest 38.2 to 40.6 in, waist 32.7 to 35 in | S | not published | chest 38 to 39 in, neck 14 to 14.5 in, sleeve 32.5 to 33 in | not published |
| XO | chest 39.8 to 42.1 in, waist 34.3 to 36.6 in | M | not published | chest 40 to 42 in, neck 15 to 15.5 in, sleeve 33.5 to 34 in | not published |
| 2XO(XA) | chest 41.3 to 43.7 in, waist 35.8 to 38.2 in | M or L | not published | chest 40 to 42 in, neck 15 to 15.5 in, sleeve 33.5 to 34 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.
- Old Navy size guide, read on 2026-09-18. Old Navy on TrueToSize