PrimaDonna to Triumph bra size
The short answer
PrimaDonna 75F is Triumph 75F by the two brands' own charts. 0 of 9 PrimaDonna sizes land on a different label at Triumph.
Cups are counted along each brand's own letter order, and the band is carried across unchanged.
| PrimaDonna | PrimaDonna builds it for | Triumph, by chart | Same label | Triumph builds it for | Triumph also prints |
|---|---|---|---|---|---|
| 75B | not published | 75B | not published | not published | UK B · US B · FR B · AU B |
| 75C | not published | 75C | not published | not published | UK C · US C · FR C · AU C |
| 75D | not published | 75D | not published | not published | UK D · US D · FR D · AU D |
| 75E | not published | 75E | not published | not published | UK DD · US DD · FR E · AU DD |
| 75F | not published | 75F | not published | not published | UK E · US DDD · FR F · AU E |
| 75G | not published | 75G | not published | not published | UK F · US G · FR G · AU F |
| 75H | not published | 75H | not published | not published | UK G · US H · FR H · AU G |
| 75I | not published | 75I | not published | not published | UK H · US I · FR I · AU H |
| 75J | not published | 75J | not published | not published | not published |
| 75K | not published | not made | not published | not published | not published |
| 75L | not published | not made | not published | not published | not published |
| 75M | not published | 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
- PrimaDonna size guide, read on 2026-09-18.
- Triumph size guide, read on 2026-09-18.