Sweaty Betty to Old Navy leggings size
The short answer
Sweaty Betty XL is Old Navy L by the two brands' own charts. 2 of 6 Sweaty Betty 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.
| Sweaty Betty | Sweaty Betty builds it for | Old Navy, by chart | Same label | Old Navy builds it for | Old Navy also prints |
|---|---|---|---|---|---|
| XXS | waist 23 in, hip 34 in | not made | XXS | not published | not published |
| XS | waist 25 in, hip 36 in | XS | XS | waist 25 to 26 in, hip 35.5 to 36.5 in | US numeric 0-2 |
| S | waist 27 in, hip 38 in | S | S | waist 27 to 28 in, hip 37.5 to 38.5 in | US numeric 4-6 |
| M | waist 29 in, hip 40 in | M | M | waist 29 to 30 in, hip 39.5 to 40.5 in | US numeric 8-10 |
| L | waist 31 in, hip 42 in | L or M | L | waist 31.5 to 33.5 in, hip 42 to 44 in | US numeric 12-14 |
| XL | waist 33 in, hip 44 in | L | XL | waist 31.5 to 33.5 in, hip 42 to 44 in | US numeric 12-14 |
| XXL | waist 36 in, hip 46.5 in | XL | XXL | waist 36.3 to 39 in, hip 46.5 to 49 in | US numeric 16-18 |
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
- Sweaty Betty size guide, read on 2026-09-17. Sweaty Betty on TrueToSize
- Old Navy size guide, read on 2026-09-17. Old Navy on TrueToSize