Uniqlo to lululemon clothing size
The short answer
Uniqlo XS is lululemon XXS by the two brands' own charts. 7 of 7 Uniqlo sizes land on a different label at lululemon.
Both brands publish the body bust each size is cut for, so every row matches a bust, not a letter or a number.
| Uniqlo Japan sizing | Uniqlo builds it for | lululemon, by chart | Same label | lululemon builds it for | lululemon 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 30 in | US 2 |
| S | bust 30.3 to 32.7 in, waist 24 to 26.4 in, hip 33.1 to 35.4 in | XS | S | bust 31 to 32 in | US 4 |
| 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 | US 6 |
| 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 | US 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 | US 10 |
| 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 | US 12-14 |
| 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 | US 12-14 |
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
- lululemon size guide, read on 2026-09-18. lululemon on TrueToSize