Nike to Whistles clothing size
The short answer
Nike M is Whistles 12 or 14 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.
| Nike | Nike builds it for | Whistles, by chart | Same label | Whistles builds it for | Whistles also prints |
|---|---|---|---|---|---|
| XXS | bust 27.5 to 29.5 in, waist 21.3 to 23.5 in, hip 30.5 to 33 in | 04 | not published | bust 30 in, waist 23.5 in, hip 34.5 in | not published |
| XS | bust 29.5 to 32.5 in, waist 23.5 to 26 in, hip 33 to 35.5 in | 06 | not published | bust 31 in, waist 24.5 in, hip 35.5 in | not published |
| S | bust 32.5 to 35.5 in, waist 26 to 29 in, hip 35.5 to 38.5 in | 10 | not published | bust 34 in, waist 27.5 in, hip 38.5 in | not published |
| M | bust 35.5 to 38 in, waist 29 to 31.5 in, hip 38.5 to 41 in | 12 or 14 | not published | bust 36 in, waist 29.5 in, hip 40.5 in | not published |
| L | bust 38 to 41 in, waist 31.5 to 34.5 in, hip 41 to 44 in | 16 | not published | bust 40 in, waist 33.5 in, hip 44.5 in | not published |
| XL | bust 41 to 44.5 in, waist 34.5 to 38.5 in, hip 44 to 47 in | 18 | not published | bust 42.5 in, waist 35.5 in, hip 46.5 in | not published |
| XXL | bust 44.5 to 48.5 in, waist 38.5 to 42.5 in, hip 47 to 50 in | 20 | not published | bust 45 in, waist 38 in, hip 49 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
- Nike size guide, read on 2026-09-18. Nike on TrueToSize
- Whistles size guide, read on 2026-09-18.