Nike to ThirdLove bra size
The short answer
Nike 34D is ThirdLove 34D by the two brands' own charts. 0 of 7 Nike sizes land on a different label at ThirdLove.
Cups are counted along each brand's own letter order, and the band is carried across unchanged.
| Nike | Nike builds it for | ThirdLove, by chart | Same label | ThirdLove builds it for | ThirdLove also prints |
|---|---|---|---|---|---|
| 34A | not published | 34A | not published | not published | not published |
| 34B | not published | 34B | not published | not published | not published |
| 34C | not published | 34C | not published | not published | not published |
| 34D | not published | 34D | not published | not published | not published |
| 34E | not published | 34E | not published | not published | not published |
| 34F | not published | 34F | not published | not published | not published |
| 34G | not published | 34G | 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
- Nike size guide, read on 2026-09-18. Nike on TrueToSize
- ThirdLove size guide, read on 2026-09-17. ThirdLove on TrueToSize