Farm Rio to Whistles clothing size
The short answer
Farm Rio XXS is Whistles 04 or 06 by the two brands' own charts.
Both brands publish the body bust each size is cut for, so every row matches a bust, not a letter or a number.
| Farm Rio | Farm Rio builds it for | Whistles, by chart | Same label | Whistles builds it for | Whistles also prints |
|---|---|---|---|---|---|
| XXS | bust 30 to 31 in, waist 24 to 25 in, hip 33 to 34 in | 04 or 06 | not published | bust 30 in, waist 23.5 in, hip 34.5 in | not published |
| XS | bust 32 to 33 in, waist 26 to 27 in, hip 35 to 36 in | 08 | not published | bust 32 in, waist 25.5 in, hip 36.5 in | not published |
| S | bust 34 to 35 in, waist 28 to 29 in, hip 37 to 38 in | 10 | not published | bust 34 in, waist 27.5 in, hip 38.5 in | not published |
| M | bust 36 to 37 in, waist 30 to 31 in, hip 39 to 40 in | 12 | not published | bust 36 in, waist 29.5 in, hip 40.5 in | not published |
| L | bust 38 to 40 in, waist 32 to 34 in, hip 41 to 43 in | 14 or 16 | not published | bust 38 in, waist 31.5 in, hip 42.5 in | not published |
| XL | bust 41 to 44 in, waist 35 to 37 in, hip 44 to 46 in | 18 | 20 | bust 42.5 in, waist 35.5 in, hip 46.5 in | not published |
What wearers say
Charts describe a garment, not a fit. We do not collect fit reports for this category yet, so this table is the two brands' own claims and nothing more.
Sources
- Farm Rio size guide, read on 2026-09-18.
- Whistles size guide, read on 2026-09-18.