Reviewed
34A vs 34B
34B is bigger than 34A. Same band, and 34B has the larger cup letter, so it holds more.
Side by side
| 34A | 34B | |
|---|---|---|
| Relationship | Same band, different cup | |
| UK | 34A | 34B |
| AU | 12A | 12B |
| EU | 75A | 75B |
| FR | 90A | 90B |
| Underbust | 34–35 in | 34–35 in |
| Bust | ≈ 35 in | ≈ 36 in |
| Cup volume | 34B holds more | |
On the size chart
34A is marked in ink and 34B is outlined. The yellow diagonal through 34A shows every size with the same cup volume.
A
B
C
D
DD
DDD
G
H
28
30
32
34
36
38
40
42
44
Read each size
Questions
Is 34A or 34B bigger?
34B is bigger than 34A. Same band, and 34B has the larger cup letter, so it holds more.
Can I wear 34B if I'm a 34A?
Only if the fit check says so. A different cup letter on the same band changes the cup volume, so try both where returns are easy.
What are 34A and 34B in UK sizes?
34A is UK 34A and 34B is UK 34B. In Europe they are 75A and 75B.