Onzie to lululemon leggings size
The short answer
Onzie X/S is lululemon 4 by the two brands' own charts.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
| Onzie | Onzie builds it for | lululemon, by chart | Same label | lululemon builds it for | lululemon also prints |
|---|---|---|---|---|---|
| X/S | waist 24 to 26 in, hip 33 to 35 in | 4 | not published | waist 25 in, hip 35 in | Letter XS |
| S/M | waist 26 to 28 in, hip 36 to 38 in | 6 | not published | waist 27 in, hip 37 in | Letter S |
| M/L | waist 28 to 31 in, hip 38 to 40 in | 8 | not published | waist 29 in, hip 39 in | Letter M |
| L/L | waist 31 to 33 in, hip 40 to 42 in | 10 or 12 | not published | waist 31 in, hip 41 in | Letter L |
| XL | waist 34 to 37 in, hip 43 to 45 in | 14 | not published | waist 35 in, hip 45 in | Letter XXL |
| 1X | waist 38 to 40 in, hip 46 to 48 in | 16 | not published | waist 38 in, hip 47 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
- Onzie size guide, read on 2026-09-18.
- lululemon size guide, read on 2026-09-17. lululemon on TrueToSize