Lorna Jane to Uniqlo leggings size
The short answer
Lorna Jane XXS is Uniqlo XS by the two brands' own charts. 6 of 7 Lorna Jane sizes land on a different label at Uniqlo.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
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.
| Lorna Jane | Lorna Jane builds it for | Uniqlo, by chart | Same label | Uniqlo builds it for | Uniqlo also prints |
|---|---|---|---|---|---|
| XXS | waist 25.6 in, hip 31.5 in | XS | XXS | waist 24 to 26.5 in, hip 34.3 to 36.5 in | not published |
| XS | waist 27.6 in, hip 35.4 in | M | XS | waist 27.3 to 29.5 in, hip 37.5 to 39.8 in | not published |
| S | waist 29.5 in, hip 39.4 in | M | S | waist 27.3 to 29.5 in, hip 37.5 to 39.8 in | not published |
| M | waist 31.5 in, hip 43.3 in | L | M | waist 29.5 to 32 in, hip 39.8 to 42.3 in | not published |
| L | waist 33.5 in, hip 47.2 in | XL | L | waist 32 to 34.3 in, hip 42.3 to 44.5 in | not published |
| XL | waist 35.4 in, hip 51.2 in | XXL | XL | waist 34.3 to 36.5 in, hip 44.5 to 46.8 in | not published |
| XXL | waist 37.4 in, hip 55.1 in | XXL | XXL | waist 34.3 to 36.5 in, hip 44.5 to 46.8 in | not published |
What wearers say
Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.
Sources
- Lorna Jane size guide, read on 2026-09-18.
- Uniqlo size guide, read on 2026-09-18. Uniqlo on TrueToSize