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.

Items 1-24 of 27

  1. Full-Busted Underwire Sports BraFull-Busted Underwire Sports Bra
    Panache 5021
    Full-Busted Underwire Sports Bra
    Rating:
    90%
    $44.95 - $79.00
  2. Elise Molded Convertible BraElise Molded Convertible Bra
    Fit Fully Yours b1812
    Elise Molded Convertible Bra
    Rating:
    91%
    $51.95 - $90.00
  3. Idol Underwire T-Shirt BraIdol Underwire T-Shirt Bra
    Freya aa1050
    Idol Underwire T-Shirt Bra
    Rating:
    89%
    $50.95 - $70.00
  4. 365 T-Shirt Bra365 T-Shirt Bra
    Panache 10905
    365 T-Shirt Bra
    $76.00
  5. 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
  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. Rebecca Essentials Underwire Moulded Spacer BraRebecca Essentials Underwire Moulded Spacer Bra
    Fantasie fl1310
    Rebecca Essentials Underwire Moulded Spacer Bra
    Rating:
    93%
    $48.95 - $70.00
  9. Ana Spacer Foam T-Shirt Underwire BraAna Spacer Foam T-Shirt Underwire Bra
    Fantasie fl6701
    Ana Spacer Foam T-Shirt Underwire Bra
    Rating:
    100%
    $53.95 - $77.00
  10. 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
  11. Rebecca Molded Spacer Underwire BraRebecca Molded Spacer Underwire Bra
    Fantasie fl2024
    Rebecca Molded Spacer Underwire Bra
    Rating:
    89%
    $56.95 - $77.00
  12. 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
  13. Pauline Full Coverage Underwire Sports BraPauline Full Coverage Underwire Sports Bra
    Fit Fully Yours b9660
    Pauline Full Coverage Underwire Sports Bra
    Rating:
    90%
    $73.00
  14. Aubree Spacer Full Cup Underwire BraAubree Spacer Full Cup Underwire Bra
    Fantasie fl6931
    Aubree Spacer Full Cup Underwire Bra
    Rating:
    100%
    $48.95 - $77.00
  15. Envisage Moulded Spacer Underwire BraEnvisage Moulded Spacer Underwire Bra
    Fantasie fl6912
    Envisage Moulded Spacer Underwire Bra
    Rating:
    100%
    $47.95 - $77.00
  16. Smoothing Seamless Strapless BraSmoothing Seamless Strapless Bra
    Fantasie fl4530
    Smoothing Seamless Strapless Bra
    Rating:
    90%
    $72.00
  17. Maxine Contour Underwire BraMaxine Contour Underwire Bra
    Fit Fully Yours b1012
    Maxine Contour Underwire Bra
    Rating:
    86%
    $29.99 - $79.00
  18. Harmony High Impact Underwire Sports BraHarmony High Impact Underwire Sports Bra
    Simone Perele 1sa262
    Harmony High Impact Underwire Sports Bra
    Rating:
    88%
    $95.00
  19. Felicia Strapless BraFelicia Strapless Bra
    Fit Fully Yours b1011
    Felicia Strapless Bra
    Rating:
    80%
    $74.00
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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.