Onzie to 2XU leggings size
The short answer
Onzie X/S is 2XU XS by the two brands' own charts. 4 of 5 Onzie sizes land on a different label at 2XU.
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 | 2XU Flex & Fluid Tights, by chart | Same label | 2XU builds it for | 2XU also prints |
|---|---|---|---|---|---|
| X/S | waist 24 to 26 in, hip 33 to 35 in | XS | not published | waist 25 to 26 in, hip 35 to 36.5 in | not published |
| S/M | waist 26 to 28 in, hip 36 to 38 in | S | not published | waist 26.5 to 28 in, hip 37 to 38.5 in | not published |
| M/L | waist 28 to 31 in, hip 38 to 40 in | M | not published | waist 28.5 to 30 in, hip 39 to 40.5 in | not published |
| L/L | waist 31 to 33 in, hip 40 to 42 in | L | not published | waist 30.5 to 32 in, hip 41 to 42.5 in | not published |
| XL | waist 34 to 37 in, hip 43 to 45 in | XL | XL | waist 32.5 to 34 in, hip 43 to 44.5 in | not published |
| 1X | waist 38 to 40 in, hip 46 to 48 in | not made | not published | not published | 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.
- 2XU Flex & Fluid Tights size guide, read on 2026-09-18.