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. Cassiopee Seamless Embroidery Full Cup BraCassiopee Seamless Embroidery Full Cup Bra
    Empreinte 07151

    Cassiopee Seamless Embroidery Full Cup Bra

    Rating:
    96%
    $164.95 - $225.00
  2. 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
  3. Allure Full Cup Underwire BraAllure Full Cup Underwire Bra
    Panache 10765

    Allure Full Cup Underwire Bra

    Rating:
    100%
    $56.95 - $71.00
  4. Madison Seamless Non-Padded BraMadison Seamless Non-Padded Bra
    Prima Donna 026-2127

    Madison Seamless Non-Padded Bra

    Rating:
    100%
    $114.95 - $154.00
  5. Offbeat Underwire Side Support BraOffbeat Underwire Side Support Bra
    Freya aa5451

    Offbeat Underwire Side Support Bra

    Rating:
    82%
    $29.99 - $66.00
  6. Glossies Lace Sheer BraGlossies Lace Sheer Bra
    Gossard 13001

    Glossies Lace Sheer Bra

    Rating:
    94%
    $29.99 - $66.00
  7. Lace Daze Underwire Balcony BraLace Daze Underwire Balcony Bra
    Curvy Kate ck4410

    Lace Daze Underwire Balcony Bra

    Rating:
    100%
    $44.95 - $69.00
  8. Louise Lace Underwire Low Neck BraLouise Lace Underwire Low Neck Bra
    Empreinte 08184

    Louise Lace Underwire Low Neck Bra

    Rating:
    100%
    $164.95 - $216.50
  9. Delice Sheer Plunge BraDelice Sheer Plunge Bra
    Simone Perele 12x319

    Delice Sheer Plunge Bra

    Rating:
    97%
    $79.95 - $120.00
  10. Joyce See Thru-Lace BraJoyce See Thru-Lace Bra
    Fit Fully Yours b2536

    Joyce See Thru-Lace Bra

    Rating:
    89%
    $48.95 - $69.00
  11. Comete Moulded Underwire BraComete Moulded Underwire Bra
    Simone Perele 12s324

    Comete Moulded Underwire Bra

    $94.95 - $120.00
  12. Offbeat Underwire Plunge BraOffbeat Underwire Plunge Bra
    Freya aa5452

    Offbeat Underwire Plunge Bra

    Rating:
    90%
    $29.99 - $64.00
  13. Allure Seamless Full Cup BraAllure Seamless Full Cup Bra
    Empreinte 07205

    Allure Seamless Full Cup Bra

    $149.95 - $231.00
  14. Ella Low Necked Underwire BraElla Low Necked Underwire Bra
    Empreinte 08221

    Ella Low Necked Underwire Bra

    $210.00 $154.95
  15. Rocha Non-Wired BraRocha Non-Wired Bra
    Panache 10345

    Rocha Non-Wired Bra

    $67.00
  16. Day to Night Lace Unlined Demi BraDay to Night Lace Unlined Demi Bra
    Chantelle 15f5

    Day to Night Lace Unlined Demi Bra

    Rating:
    100%
    $74.95 - $98.00
  17. Ava See-Thru Lace Underwire BraAva See-Thru Lace Underwire Bra
    Fit Fully Yours b2382

    Ava See-Thru Lace Underwire Bra

    Rating:
    80%
    $79.00
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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.