Reformation to Joe's Jeans jeans size
The short answer
Reformation 30 is Joe's Jeans 31 by the two brands' own charts. 2 of 9 Reformation sizes land on a different label at Joe's Jeans.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
| Reformation | Reformation builds it for | Joe's Jeans, by chart | Same label | Joe's Jeans builds it for | Joe's Jeans also prints |
|---|---|---|---|---|---|
| 23 | waist 23.5 in, hip 34 in | 23 | 23 | waist 23.5 in, hip 33.5 in | not published |
| 24 | waist 24.5 in, hip 35 in | 24 | 24 | waist 24.5 in, hip 34.5 in | not published |
| 25 | waist 25.5 in, hip 36 in | 25 | 25 | waist 25.5 in, hip 35.5 in | not published |
| 26 | waist 26.5 in, hip 37 in | 26 | 26 | waist 26.5 in, hip 36.5 in | not published |
| 27 | waist 27.5 in, hip 38 in | 27 | 27 | waist 27.5 in, hip 37.5 in | not published |
| 28 | waist 28.5 in, hip 39 in | 28 | 28 | waist 28.5 in, hip 38.5 in | not published |
| 29 | waist 30 in, hip 40.5 in | 29 or 30 | 29 | waist 29.5 in, hip 39.5 in | not published |
| 30 | waist 31.5 in, hip 42 in | 31 | 30 | waist 31.8 in, hip 41.8 in | not published |
| 31 | waist 33.3 in, hip 43.8 in | 32 | 31 | waist 33 in, hip 43 in | not published |
| 32 | waist 38.5 in, hip 49 in | not made | 32 | not published | not published |
| 33 | waist 39 in, hip 50 in | not made | 33 | not published | not published |
| 34 | waist 40 in, hip 51 in | not made | 34 | not published | not published |
| 35 | waist 41 in, hip 52 in | not made | not published | not published | not published |
| 36 | waist 42 in, hip 53 in | not made | not published | not published | not published |
| 38 | waist 44 in, hip 55 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
- Reformation size guide, read on 2026-09-18. Reformation on TrueToSize
- Joe's Jeans size guide, read on 2026-09-18.