Fit guide
Two measurements give you a starting size. Fit varies by product and style, so use it as a guide and trust how the bra feels.
How to measure
Step 1
Underbust
Wrap the tape snugly around your ribcage, just under your bust. Keep it level and breathe out. This sets your band.
Step 2
Bust
Measure loosely around the fullest part of your bust, wearing an unpadded bra. The difference from your band sets your cup.
Step 3
Check the fit
A new bra should sit level on the loosest hook, with the centre lying flat and no gaps or spilling at the cup.
Band size
Your underbust, rounded to the nearest even inch.
| Band | Underbust (cm) | Underbust (in) |
|---|---|---|
| 28 | 69–73 | 27–28.9 |
| 30 | 74–78 | 29–30.9 |
| 32 | 79–83 | 31–32.9 |
| 34 | 84–88 | 33–34.9 |
| 36 | 89–93 | 35–36.9 |
| 38 | 94–99 | 37–38.9 |
| 40 | 100–104 | 39–40.9 |
| 42 | 105–109 | 41–42.9 |
| 44 | 110–114 | 43–44.9 |
| 46 | 115–119 | 45–46.9 |
| 48 | 120–124 | 47–48.9 |
Cup size
Your bust minus your band, in inches.
| Difference (in) | Cup |
|---|---|
| 0 | AA |
| 1 | A |
| 2 | B |
| 3 | C |
| 4 | D |
| 5 | DD |
| 6 | E |
| 7 | F |
| 8 | FF |
| 9 | G |
Sister sizes
Going down a band and up a cup keeps the same cup volume: 34B, 32C and 36A hold the same. If a band feels loose, try the sister size with the smaller band.
Sizes we make now
- 34B
- 36B
Knickers and bralettes come in letter sizes; each product has its own size guide where available.