Most people are wearing a band that is too loose and a cup that is too small. Ten minutes with a tape measure fixes it. You need a soft tape, a mirror, and to do this without a bulky top on.
1. Measure your underbust
Run the tape directly under your bust, snug and level all the way round, and breathe out. Read the number in centimetres. That is your band measurement — not your bra band size yet, just the measurement.
2. Measure your bust
Tape across the fullest part, loose enough to slide a finger underneath, level at the back. Stand normally; do not lean forward.
3. Work out the cup
Subtract the underbust number from the bust number. Every 2.5 cm of difference is roughly one cup size: about 12.5 cm is a C, 15 cm is a D, and so on. If you land halfway between two, our half cups in bands 32–38 exist for exactly that.
4. Check it against the style
Every product page lists the band and cup range that style is actually cut for, plus how it runs. A bralette that stops at a D is not going to work as a D+ style no matter what the chart says, so we say so on the page rather than letting you find out.
5. Try it properly at home
Keep the tags on and wear it around the house. Three things to check:
- The band should sit level and firm on the loosest hook. If it rides up your back, the band is too big.
- The cup should contain everything without gapping at the top edge or spilling at the side.
- The straps should carry almost none of the weight. If you are tightening them to get support, the band is wrong.
If it is not right
The first exchange is free within 30 days. Tell us what went wrong when you send it back — that is more useful to us than the return itself.