How does sewn. bra sizing run?
sewn. is labelled in US sizing. Small-batch Canadian lingerie. Below is how a sewn. size translates across all eight regional standards, plus sister sizes and where to buy.
sewn. size range & system
sewn. sizes in US.
sewn. size conversion chart
Each row is one sewn. cup size read across the eight standards. The US column (highlighted) is how sewn. 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 sewn. sizes
Open the full eight-standard conversion for a specific size:
Sister sizes in sewn.
If a sewn. 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.
Want your exact starting size in sewn.? Two measurements, two minutes — free, nothing stored.
Find your size in sewn. →Where to buy sewn.
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sewn. sizing FAQ
- Does sewn. run true to size?
- US/CA sizing. Made-to-fit. Small-batch Canadian lingerie.
- What sizing system does sewn. use?
- sewn. 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 sewn. 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.