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.

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  1. Melody Underwired Seamless BraMelody Underwired Seamless Bra
    Empreinte 0786

    Melody Underwired Seamless Bra

    Rating:
    94%
    $154.95 - $212.00
  2. Allure Full Cup Underwire BraAllure Full Cup Underwire Bra
    Panache 10765

    Allure Full Cup Underwire Bra

    Rating:
    100%
    $56.95 - $71.00
  3. Fusion Underwire Full Cup Side Support BraFusion Underwire Full Cup Side Support Bra
    Fantasie fl3091

    Fusion Underwire Full Cup Side Support Bra

    Rating:
    83%
    $37.95 - $66.00
  4. Norah Comfort Underwire BraNorah Comfort Underwire Bra
    New Color
    Chantelle 13f1

    Norah Comfort Underwire Bra

    Rating:
    93%
    $59.95 - $82.00
  5. Madison Seamless Non-Padded BraMadison Seamless Non-Padded Bra
    Prima Donna 026-2127

    Madison Seamless Non-Padded Bra

    Rating:
    100%
    $114.95 - $154.00
  6. Verity Spacer Foam Cup Underwire BraVerity Spacer Foam Cup Underwire Bra
    Empreinte 40173

    Verity Spacer Foam Cup Underwire Bra

    Rating:
    88%
    $184.00
  7. Zora Molded Underwire BraZora Molded Underwire Bra
    Fit Fully Yours b1212

    Zora Molded Underwire Bra

    Rating:
    85%
    $80.00
  8. Thalia Underwired Low-Neck BraThalia Underwired Low-Neck Bra
    Empreinte 1856

    Thalia Underwired Low-Neck Bra

    Rating:
    95%
    $163.95 - $220.50
  9. Offbeat Underwire Side Support BraOffbeat Underwire Side Support Bra
    Freya aa5451

    Offbeat Underwire Side Support Bra

    Rating:
    82%
    $29.99 - $66.00
  10. Serene Full Cup Underwire BraSerene Full Cup Underwire Bra
    Panache 10305

    Serene Full Cup Underwire Bra

    Rating:
    100%
    $59.95 - $74.00
  11. Envisage Underwire Full Cup Bra With Side SupportEnvisage Underwire Full Cup Bra With Side Support
    Fantasie fl6911

    Envisage Underwire Full Cup Bra With Side Support

    Rating:
    96%
    $34.95 - $66.00
  12. Lace Daze Underwire Balcony BraLace Daze Underwire Balcony Bra
    Curvy Kate ck4410

    Lace Daze Underwire Balcony Bra

    Rating:
    100%
    $44.95 - $69.00
  13. 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
  14. Gaby Low Necked Underwire BraGaby Low Necked Underwire Bra
    Empreinte 08220

    Gaby Low Necked Underwire Bra

    $215.00 $159.95
  15. Seamless Balcony BraSeamless Balcony Bra
    Fantasie fl4520

    Seamless Balcony Bra

    Rating:
    84%
    $55.00
  16. Delice 3D Spacer Foam Contour Underwire BraDelice 3D Spacer Foam Contour Underwire Bra
    Simone Perele 12x343

    Delice 3D Spacer Foam Contour Underwire Bra

    Rating:
    100%
    $74.95 - $115.00
  17. Rebecca Molded Spacer Underwire BraRebecca Molded Spacer Underwire Bra
    Fantasie fl2024

    Rebecca Molded Spacer Underwire Bra

    Rating:
    89%
    $56.95 - $77.00
  18. Romy Underwired Low-Necked BraRomy Underwired Low-Necked Bra
    Empreinte 08212

    Romy Underwired Low-Necked Bra

    Rating:
    100%
    $132.95 - $178.00
  19. Comete Moulded Underwire BraComete Moulded Underwire Bra
    Simone Perele 12s324

    Comete Moulded Underwire Bra

    $94.95 - $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.