Reviewed
36B vs 38B
38B is bigger than 36B. The cup letter is the same, but cup volume grows with the band, so 38B's cups hold more as well as having the longer band.
Side by side
| 36B | 38B | |
|---|---|---|
| Relationship | Same cup letter, different band | |
| UK | 36B | 38B |
| AU | 14B | 16B |
| EU | 80B | 85B |
| FR | 95B | 100B |
| Underbust | 36–37 in | 38–39 in |
| Bust | ≈ 38 in | ≈ 40 in |
| Cup volume | 38B holds more | |
On the size chart
36B is marked in ink and 38B is outlined. The yellow diagonal through 36B 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 36B or 38B bigger?
38B is bigger than 36B. The cup letter is the same, but cup volume grows with the band, so 38B's cups hold more as well as having the longer band.
Can I wear 38B if I'm a 36B?
Only if the fit check says so. Changing the band also changes the cup volume, so try both where returns are easy.
What are 36B and 38B in UK sizes?
36B is UK 36B and 38B is UK 38B. In Europe they are 80B and 85B.