Lorna Jane to Onzie leggings size
The short answer
Lorna Jane XXS is Onzie X/S by the two brands' own charts. 6 of 7 Lorna Jane sizes land on a different label at Onzie.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
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.
| Lorna Jane | Lorna Jane builds it for | Onzie, by chart | Same label | Onzie builds it for | Onzie also prints |
|---|---|---|---|---|---|
| XXS | waist 25.6 in, hip 31.5 in | X/S | not published | waist 24 to 26 in, hip 33 to 35 in | US numeric 0-2 |
| XS | waist 27.6 in, hip 35.4 in | S/M | not published | waist 26 to 28 in, hip 36 to 38 in | US numeric 2-6 |
| S | waist 29.5 in, hip 39.4 in | M/L | X/S | waist 28 to 31 in, hip 38 to 40 in | US numeric 6-8 |
| M | waist 31.5 in, hip 43.3 in | L/L | S/M | waist 31 to 33 in, hip 40 to 42 in | US numeric 10-12 |
| L | waist 33.5 in, hip 47.2 in | L/L or XL | M/L | waist 31 to 33 in, hip 40 to 42 in | US numeric 10-12 |
| XL | waist 35.4 in, hip 51.2 in | XL | XL | waist 34 to 37 in, hip 43 to 45 in | US numeric 14-16 |
| XXL | waist 37.4 in, hip 55.1 in | XL or 1X | not published | waist 34 to 37 in, hip 43 to 45 in | US numeric 14-16 |
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.
- Onzie size guide, read on 2026-09-18.