30F Bras Lingerie, and Swimwear | 30F Bra Size

F Bra Cup Size (Your UCS is either a D3 or a D4 )

Your F cup size can be a little tricky.  If you are an F cup size in EU brands like Chantelle, Empreiente, Prima Donna, Anita, Simone Perele, and others, you are also a DDD cup size in US brands like  Wacoal, Bali, Natori, and Vanity Fair, and an E cup in UK brands like Elomi, Freya, and Panache.

And... if you're an F cup size in UK brands, you are also a G cup size in both US brands (formerly the DDDD cup size)  and EU brands. 

At HerRoom, it's easy to combine all your cup sizes into one simple search by using our exclusive Universal Cup Sizing (UCS).

Search 30D3 and see everything that comes in your F, DDD, and E cup sizes.

Search 30D4 and see everything that comes in your F, DDDD, and G cup sizes.

Items 1-24 of 31

  1. Ana Non-Padded Plunge Underwire BraAna Non-Padded Plunge Underwire Bra
    Panache 9396a

    Ana Non-Padded Plunge Underwire Bra

    Rating:
    90%
    $52.95 - $71.00
  2. Delice Sheer Plunge BraDelice Sheer Plunge Bra
    Simone Perele 12x319

    Delice Sheer Plunge Bra

    Rating:
    97%
    $79.95 - $120.00
  3. Superplunge Multiway Padded Plunge BraSuperplunge Multiway Padded Plunge Bra
    Curvy Kate ck2107

    Superplunge Multiway Padded Plunge Bra

    Rating:
    70%
    $68.00
  4. Lifestyle Sheer Plunge Multi Part Cup BraLifestyle Sheer Plunge Multi Part Cup Bra
    Curvy Kate ck5711

    Lifestyle Sheer Plunge Multi Part Cup Bra

    Rating:
    86%
    $29.99 - $61.00
  5. Offbeat Underwire Plunge BraOffbeat Underwire Plunge Bra
    Freya aa5452

    Offbeat Underwire Plunge Bra

    Rating:
    90%
    $29.99 - $64.00
  6. Superboost Lace Band T-Shirt BraSuperboost Lace Band T-Shirt Bra
    Gossard 7705

    Superboost Lace Band T-Shirt Bra

    Rating:
    80%
    $43.95 - $65.00
  7. Andora 3D Spacer Convertible Plunge Underwire BraAndora 3D Spacer Convertible Plunge Underwire Bra
    Simone Perele 131316

    Andora 3D Spacer Convertible Plunge Underwire Bra

    Rating:
    100%
    $74.95 - $115.00
  8. Scantilly Fascinate Plunge Underwire BraScantilly Fascinate Plunge Underwire Bra
    Curvy Kate st1710

    Scantilly Fascinate Plunge Underwire Bra

    $88.00 $48.95 - $70.95
  9. Superboost Lace Non-Padded Plunge BraSuperboost Lace Non-Padded Plunge Bra
    Gossard 7725

    Superboost Lace Non-Padded Plunge Bra

    Rating:
    89%
    $36.99 - $75.00
  10. Scantilly Fascinate Plunge Basque BraScantilly Fascinate Plunge Basque Bra
    Curvy Kate st1770

    Scantilly Fascinate Plunge Basque Bra

    Rating:
    100%
    $151.00 $119.95
  11. Mia Bralette BraMia Bralette Bra
    Fit Fully Yours b6105

    Mia Bralette Bra

    $87.00
  12. Shea Plunge Unlined Underwire BraShea Plunge Unlined Underwire Bra
    Parfait p6062

    Shea Plunge Unlined Underwire Bra

    Rating:
    90%
    $56.00
  13. Alexis T-Shirt BraAlexis T-Shirt Bra
    Cleo by Panache 10470

    Alexis T-Shirt Bra

    $71.00 $54.95
  14. Scantilly Exposed Plunge Underwire BraScantilly Exposed Plunge Underwire Bra
    Curvy Kate st1110

    Scantilly Exposed Plunge Underwire Bra

    Rating:
    100%
    $76.00 $49.95 - $60.95
  15. Wild Side Underwire Plunge BraWild Side Underwire Plunge Bra
    Freya aa1202

    Wild Side Underwire Plunge Bra

    Rating:
    100%
    $62.00 $44.95
  16. Aubree Underwire Side Support Plunge BraAubree Underwire Side Support Plunge Bra
    Fantasie fl6932

    Aubree Underwire Side Support Plunge Bra

    Rating:
    80%
    $74.00 $44.95 - $56.95
  17. Signature Plunge Underwire BraSignature Plunge Underwire Bra
    Freya aa0502

    Signature Plunge Underwire Bra

    Rating:
    100%
    $64.00 $37.95 - $49.95
  18. Karma Strapless BraKarma Strapless Bra
    Simone Perele 12v302

    Karma Strapless Bra

    $100.00
  19. Scantilly Unchained Plunge BraScantilly Unchained Plunge Bra
    Curvy Kate st6101

    Scantilly Unchained Plunge Bra

    $86.00 $49.95
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If you’re looking for the best bras for women, then you’ve come to the right place. We offer a wide assortment of styles, brands, and sizes at HerRoom. Whether you’re an A or a P cup, you’re sure to find the perfect bra.