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. Elise Molded Convertible BraElise Molded Convertible Bra
    Fit Fully Yours b1812

    Elise Molded Convertible Bra

    Rating:
    91%
    $51.95 - $90.00
  2. Zora Molded Underwire BraZora Molded Underwire Bra
    Fit Fully Yours b1212

    Zora Molded Underwire Bra

    Rating:
    85%
    $80.00
  3. Smoothing T-Shirt BraSmoothing T-Shirt Bra
    Fantasie fl4510

    Smoothing T-Shirt Bra

    $68.00
  4. Avero Contour Plunge BraAvero Contour Plunge Bra
    Marie Jo 010-0418

    Avero Contour Plunge Bra

    Rating:
    94%
    $160.00
  5. Gloria Smooth Lace BraGloria Smooth Lace Bra
    Fit Fully Yours b1042

    Gloria Smooth Lace Bra

    Rating:
    81%
    $77.00
  6. Deco Underwire Plunge T-Shirt BraDeco Underwire Plunge T-Shirt Bra
    Freya aa4234

    Deco Underwire Plunge T-Shirt Bra

    Rating:
    88%
    $66.00
  7. Superplunge Multiway Padded Plunge BraSuperplunge Multiway Padded Plunge Bra
    Curvy Kate ck2107

    Superplunge Multiway Padded Plunge Bra

    Rating:
    70%
    $68.00
  8. Fancies Underwire Balcony T-Shirt BraFancies Underwire Balcony T-Shirt Bra
    Freya aa1030

    Fancies Underwire Balcony T-Shirt Bra

    Rating:
    87%
    $66.00 $51.50
  9. Starlight Underwire Idol T-Shirt BraStarlight Underwire Idol T-Shirt Bra
    Freya aa5200

    Starlight Underwire Idol T-Shirt Bra

    Rating:
    84%
    $47.95 - $70.00
  10. 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
  11. Smoothing Seamless Strapless BraSmoothing Seamless Strapless Bra
    Fantasie fl4530

    Smoothing Seamless Strapless Bra

    Rating:
    90%
    $72.00
  12. Aura Underwire Smoothing T-Shirt BraAura Underwire Smoothing T-Shirt Bra
    Fantasie fl2321

    Aura Underwire Smoothing T-Shirt Bra

    Rating:
    86%
    $70.00
  13. Ella Molded Cup BraElla Molded Cup Bra
    Fit Fully Yours b1824

    Ella Molded Cup Bra

    $96.00
  14. Grace Balcony BraGrace Balcony Bra
    Panache 11071

    Grace Balcony Bra

    $78.00
  15. Evie Strapless BraEvie Strapless Bra
    Panache 5320

    Evie Strapless Bra

    Rating:
    79%
    $67.00 $53.95
  16. Essentiel Strapless Plunge BraEssentiel Strapless Plunge Bra
    Simone Perele 13v303

    Essentiel Strapless Plunge Bra

    Rating:
    60%
    $69.95 - $90.00
  17. Festivite Contour Plunge BraFestivite Contour Plunge Bra
    Chantelle 3682

    Festivite Contour Plunge Bra

    Rating:
    96%
    $88.00
  18. Delice Strapless BraDelice Strapless Bra
    Simone Perele 12x300

    Delice Strapless Bra

    Rating:
    100%
    $105.00
  19. Tiffany Wireless BraTiffany Wireless Bra
    Fit Fully Yours b6913

    Tiffany Wireless Bra

    Rating:
    40%
    $64.00
  20. Aura Underwire Seamless Strapless BraAura Underwire Seamless Strapless Bra
    Fantasie fl2320

    Aura Underwire Seamless Strapless Bra

    Rating:
    65%
    $74.00
  21. Octavia Strapless BraOctavia Strapless Bra
    Fit Fully Yours b5011

    Octavia Strapless Bra

    Rating:
    100%
    $70.00
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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.