Zella to Old Navy leggings size
The short answer
Zella XXL is Old Navy XL by the two brands' own charts. 4 of 10 Zella sizes land on a different label at Old Navy.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
| Zella | Zella builds it for | Old Navy, by chart | Same label | Old Navy builds it for | Old Navy also prints |
|---|---|---|---|---|---|
| XXS | waist 24 in, hip 33.5 in | XXS | XXS | waist 24 in, hip 34.5 in | US numeric 00 |
| XS | waist 25 to 26 in, hip 34.5 to 35.5 in | XS | XS | waist 25 to 26 in, hip 35.5 to 36.5 in | US numeric 0-2 |
| S | waist 27 to 28 in, hip 36.5 to 37.5 in | S | S | waist 27 to 28 in, hip 37.5 to 38.5 in | US numeric 4-6 |
| M | waist 29 to 30 in, hip 38.5 to 39.5 in | M | M | waist 29 to 30 in, hip 39.5 to 40.5 in | US numeric 8-10 |
| L | waist 31.5 to 33.5 in, hip 41.5 to 43.5 in | L | L | waist 31.5 to 33.5 in, hip 42 to 44 in | US numeric 12-14 |
| XL | waist 35.5 in, hip 45.5 in | XL or L | XL | waist 36.3 to 39 in, hip 46.5 to 49 in | US numeric 16-18 |
| XXL | waist 38 in, hip 48.5 in | XL | XXL | waist 36.3 to 39 in, hip 46.5 to 49 in | US numeric 16-18 |
| 2X | waist 40.5 in, hip 51 in | XXL | 2X | waist 42 in, hip 51.5 in | US numeric 20 |
| 3X | waist 43 to 45 in, hip 53.3 to 55.5 in | 2X | 3X | waist 42 to 44.3 in, hip 51.5 to 53.8 in | US numeric 20-22 |
| 4X | waist 47 to 49 in, hip 57.8 to 60 in | 3X | 4X | waist 46.6 to 49 in, hip 56.1 to 58.5 in | US numeric 24-26 |
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
- Zella size guide, read on 2026-09-18. Zella on TrueToSize
- Old Navy size guide, read on 2026-09-17. Old Navy on TrueToSize