DESCENTE to Reiss clothing size
The short answer
DESCENTE O is Reiss 10 by the two brands' own charts.
Both brands publish the body bust each size is cut for, so every row matches a bust, not a letter or a number.
| DESCENTE Japan sizing | DESCENTE builds it for | Reiss, by chart | Same label | Reiss builds it for | Reiss also prints |
|---|---|---|---|---|---|
| S | bust 30.7 to 32.3 in, waist 23.2 to 24.8 in | 4 or 6 | not published | bust 31 in, waist 24 in, hip 34 in | US 0 · Letter XS · FR 34 · IT 36 · AU 4 · EU (as printed) 32 |
| M | bust 31.9 to 33.5 in, waist 24.4 to 26 in | 8 | not published | bust 33 in, waist 26 in, hip 36 in | US 4 · Letter S · FR 38 · IT 40 · AU 8 · EU (as printed) 36 |
| L | bust 33.1 to 34.7 in, waist 25.6 to 27.2 in | 8 or 10 | not published | bust 33 in, waist 26 in, hip 36 in | US 4 · Letter S · FR 38 · IT 40 · AU 8 · EU (as printed) 36 |
| O | bust 34.3 to 35.8 in, waist 26.8 to 28.4 in | 10 | not published | bust 35 in, waist 28 in, hip 38 in | US 6 · Letter S · FR 40 · IT 42 · AU 10 · EU (as printed) 38 |
| XO | bust 35.4 to 37 in, waist 28 to 29.5 in | 12 or 10 | not published | bust 37 in, waist 30 in, hip 40 in | US 8 · Letter M · FR 42 · IT 44 · AU 12 · EU (as printed) 40 |
| 2XO(XA) | bust 36.6 to 38.2 in, waist 29.1 to 30.7 in | 12 | not published | bust 37 in, waist 30 in, hip 40 in | US 8 · Letter M · FR 42 · IT 44 · AU 12 · EU (as printed) 40 |
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.
- Reiss size guide, read on 2026-09-18.