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. Tom Fiberfill Convertible Underwire BraTom Fiberfill Convertible Underwire Bra
    Marie Jo 012-0826
    Tom Fiberfill Convertible Underwire Bra
    Rating:
    95%
    $69.95 - $120.00
  2. Elise Molded Convertible BraElise Molded Convertible Bra
    Fit Fully Yours b1812
    Elise Molded Convertible Bra
    Rating:
    91%
    $51.95 - $90.00
  3. Sonic Underwire Molded Spacer Sports BraSonic Underwire Molded Spacer Sports Bra
    Freya ac4892
    Sonic Underwire Molded Spacer Sports Bra
    Rating:
    87%
    $34.99 - $74.00
  4. 365 T-Shirt Bra365 T-Shirt Bra
    Panache 10905
    365 T-Shirt Bra
    $76.00
  5. Zora Molded Underwire BraZora Molded Underwire Bra
    Fit Fully Yours b1212
    Zora Molded Underwire Bra
    Rating:
    85%
    $80.00
  6. Glossies Lace Sheer BraGlossies Lace Sheer Bra
    Gossard 13001
    Glossies Lace Sheer Bra
    Rating:
    94%
    $29.99 - $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. Comete Moulded Underwire BraComete Moulded Underwire Bra
    Simone Perele 12s324
    Comete Moulded Underwire Bra
    $94.95 - $120.00
  9. Smoothing Seamless Strapless BraSmoothing Seamless Strapless Bra
    Fantasie fl4530
    Smoothing Seamless Strapless Bra
    Rating:
    90%
    $72.00
  10. Melody Underwire Seamless Triangle BraMelody Underwire Seamless Triangle Bra
    Empreinte 1486
    Melody Underwire Seamless Triangle Bra
    Rating:
    93%
    $139.95 - $204.00
  11. Radiance Moulded Non Padded Underwire BraRadiance Moulded Non Padded Underwire Bra
    Panache 10461
    Radiance Moulded Non Padded Underwire Bra
    Rating:
    100%
    $76.00 $60.95
  12. Alice Strapless BraAlice Strapless Bra
    Panache 11040
    Alice Strapless Bra
    $74.00
  13. Porcelain Elan Molded Unlined T-Shirt BraPorcelain Elan Molded Unlined T-Shirt Bra
    Panache 7328
    Porcelain Elan Molded Unlined T-Shirt Bra
    Rating:
    82%
    $71.00 $56.95
  14. Evie Strapless BraEvie Strapless Bra
    Panache 5320
    Evie Strapless Bra
    Rating:
    79%
    $67.00 $53.95
  15. Essentiel Strapless Plunge BraEssentiel Strapless Plunge Bra
    Simone Perele 13v303
    Essentiel Strapless Plunge Bra
    Rating:
    60%
    $69.95 - $90.00
  16. High Impact Everyday Sports BraHigh Impact Everyday Sports Bra
    Chantelle 15m1
    High Impact Everyday Sports Bra
    Rating:
    100%
    $88.00
  17. Delice Strapless BraDelice Strapless Bra
    Simone Perele 12x300
    Delice Strapless Bra
    Rating:
    100%
    $105.00
  18. Felicia Strapless BraFelicia Strapless Bra
    Fit Fully Yours b1011
    Felicia Strapless Bra
    Rating:
    80%
    $74.00
  19. Caresse 3D Spacer Foam Strapless Underwire BraCaresse 3D Spacer Foam Strapless Underwire Bra
    Simone Perele 12a300
    Caresse 3D Spacer Foam Strapless Underwire Bra
    Rating:
    100%
    $105.00
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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.