How does Knix bra sizing run?
Knix is labelled in US sizing. Seamless comfort; size by quiz. Below is how a Knix size translates across all eight regional standards, plus sister sizes and where to buy.
Knix size range & system
Knix sizes in US.
Knix size conversion chart
Each row is one Knix cup size read across the eight standards. The US column (highlighted) is how Knix labels its bras.
| US | UK | EU | FR | IT | AU | JP | IN |
|---|---|---|---|---|---|---|---|
| A | A | A | A | A | A | A | A |
| B | B | B | B | B | B | B | B |
| C | C | C | C | C | C | C | C |
| D | D | D | D | D | D | D | D |
| DD | DD | E | E | E | DD | E | DD |
| DDD | E | F | F | F | E | F | E |
Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.
Common Knix sizes
Open the full eight-standard conversion for a specific size:
Sister sizes in Knix
If a Knix bra fits in the cup but the band is off, your sister size keeps the same cup volume with a different band — go down a band and up a cup, or up a band and down a cup. Example: a 34D and a 32DD hold the same cup volume.
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Find your size in Knix →Where to buy Knix
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Knix sizing FAQ
- Does Knix run true to size?
- US sizing. Wire-free, leakproof. Seamless comfort; size by quiz.
- What sizing system does Knix use?
- Knix is labelled in US sizing. Use the conversion table above to read your size across US, UK, EU, FR, IT, AU, JP and IN.
- What is a 34D in Knix in EU sizing?
- A US 34D converts to EU 75D. Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.