PrimaDonna to Wacoal bra size
The short answer
PrimaDonna 75F is Wacoal 34DDD by the two brands' own charts.
Cups are counted along each brand's own letter order, and the band is carried across unchanged.
| PrimaDonna | PrimaDonna builds it for | Wacoal, by chart | Same label | Wacoal builds it for | Wacoal also prints |
|---|---|---|---|---|---|
| 75B | not published | 34B | not published | not published | not published |
| 75C | not published | 34C | not published | not published | not published |
| 75D | not published | 34D | not published | not published | not published |
| 75E | not published | 34DD | not published | not published | not published |
| 75F | not published | 34DDD | not published | not published | not published |
| 75G | not published | 34G | not published | not published | not published |
| 75H | not published | 34H | not published | not published | not published |
| 75I | not published | 34I | not published | not published | not published |
| 75J | not published | 34J | 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.
- Wacoal size guide, read on 2026-09-17. Wacoal on TrueToSize