Uniqlo to Diane von Furstenberg clothing size
The short answer
Uniqlo XS is Diane von Furstenberg XXS by the two brands' own charts. 7 of 7 Uniqlo sizes land on a different label at Diane von Furstenberg.
Both brands publish the body bust each size is cut for, so every row matches a bust, not a letter or a number.
On 1 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.
| Uniqlo Japan sizing | Uniqlo builds it for | Diane von Furstenberg, by chart | Same label | Diane von Furstenberg builds it for | Diane von Furstenberg also prints |
|---|---|---|---|---|---|
| XS | bust 28.7 to 31.1 in, waist 22.4 to 24.8 in, hip 31.5 to 33.9 in | XXS | XS | bust 31 in, waist 24 in, hip 34 in | US 00 |
| S | bust 30.3 to 32.7 in, waist 24 to 26.4 in, hip 33.1 to 35.4 in | XXS or XS | S | bust 31 in, waist 24 in, hip 34 in | US 00 |
| M | bust 31.9 to 34.3 in, waist 25.6 to 28 in, hip 34.7 to 37 in | S | M | bust 33 to 34 in, waist 26 to 27 in, hip 36 to 37 in | US 2/4 |
| L | bust 33.5 to 35.8 in, waist 27.2 to 29.5 in, hip 36.2 to 38.6 in | M or S | L | bust 35 to 36 in, waist 28 to 29 in, hip 38 to 39 in | US 6/8 |
| XL | bust 35.8 to 38.2 in, waist 29.5 to 31.9 in, hip 38.6 to 40.9 in | L | XL | bust 37 to 38.5 in, waist 30 to 31.5 in, hip 40 to 41.5 in | US 10/12 |
| XXL | bust 38.2 to 40.6 in, waist 31.9 to 34.3 in, hip 40.9 to 43.3 in | XL or L | not published | bust 40 to 42 in, waist 33 to 35 in, hip 43 to 45 in | US 14/16 |
| 3XL | bust 40.6 to 42.9 in, waist 34.3 to 36.6 in, hip 43.3 to 45.7 in | XL | not published | bust 40 to 42 in, waist 33 to 35 in, hip 43 to 45 in | US 14/16 |
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
- Uniqlo Japan sizing size guide, read on 2026-09-25. Uniqlo on TrueToSize
- Diane von Furstenberg size guide, read on 2026-09-18.