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.

23 Items

  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. Wonderwire Stretch Lace Front Closure BraWonderwire Stretch Lace Front Closure Bra
    Glamorise 9245

    Wonderwire Stretch Lace Front Closure Bra

    Rating:
    85%
    $57.00 $34.95 - $42.75
  3. Superboost Lace Deep V Underwire BraletteSuperboost Lace Deep V Underwire Bralette
    Gossard 7718

    Superboost Lace Deep V Underwire Bralette

    Rating:
    91%
    $38.99 - $78.00
  4. Delice Sheer Plunge BraDelice Sheer Plunge Bra
    Simone Perele 12x319

    Delice Sheer Plunge Bra

    Rating:
    97%
    $79.95 - $120.00
  5. Superboost Lace Padded Plunge BraSuperboost Lace Padded Plunge Bra
    Gossard 7711

    Superboost Lace Padded Plunge Bra

    Rating:
    81%
    $32.99 - $75.00
  6. Offbeat Underwire Plunge BraOffbeat Underwire Plunge Bra
    Freya aa5452

    Offbeat Underwire Plunge Bra

    Rating:
    90%
    $29.99 - $64.00
  7. Melody Underwire Seamless Triangle BraMelody Underwire Seamless Triangle Bra
    Empreinte 1486

    Melody Underwire Seamless Triangle Bra

    Rating:
    93%
    $139.95 - $204.00
  8. Mimi Push Up BraMimi Push Up Bra
    Fit Fully Yours b4102

    Mimi Push Up Bra

    $78.00
  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. Fancies Underwire Plunge BraFancies Underwire Plunge Bra
    Freya aa1011

    Fancies Underwire Plunge Bra

    Rating:
    86%
    $48.95 - $62.00
  11. Subtile 3D Plunge BraSubtile 3D Plunge Bra
    Simone Perele 19y316

    Subtile 3D Plunge Bra

    $80.00
  12. Alexis T-Shirt BraAlexis T-Shirt Bra
    Cleo by Panache 10470

    Alexis T-Shirt Bra

    $71.00 $54.95
  13. Festivite Contour Plunge BraFestivite Contour Plunge Bra
    Chantelle 3682

    Festivite Contour Plunge Bra

    Rating:
    96%
    $88.00
  14. 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
  15. Memoir Underwire Full Cup Side Support BraMemoir Underwire Full Cup Side Support Bra
    Fantasie fl3021

    Memoir Underwire Full Cup Side Support Bra

    Rating:
    57%
    $69.00 $51.95
  16. Karma Strapless BraKarma Strapless Bra
    Simone Perele 12v302

    Karma Strapless Bra

    $100.00
  17. Comete 3D Plunge Underwire BraComete 3D Plunge Underwire Bra
    Simone Perele 12s316

    Comete 3D Plunge Underwire Bra

    $64.00 - $120.00
  18. Reve Full Cup 3/4 Plunge BraReve Full Cup 3/4 Plunge Bra
    Simone Perele 12z313

    Reve Full Cup 3/4 Plunge Bra

    $120.00
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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.