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 34

  1. Full-Busted Underwire Sports BraFull-Busted Underwire Sports Bra
    Panache 5021

    Full-Busted Underwire Sports Bra

    Rating:
    60%
    $44.95 - $75.00
  2. Elise Molded Convertible BraElise Molded Convertible Bra
    Fit Fully Yours b1812

    Elise Molded Convertible Bra

    Rating:
    91%
    $51.95 - $90.00
  3. Luxe Strapless Multiway Underwire BraLuxe Strapless Multiway Underwire Bra
    Curvy Kate ck2601

    Luxe Strapless Multiway Underwire Bra

    Rating:
    85%
    $53.95 - $77.00
  4. 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
  5. Initiale Spacer Foam Underwire Sports BraInitiale Spacer Foam Underwire Sports Bra
    Empreinte 07200

    Initiale Spacer Foam Underwire Sports Bra

    Rating:
    87%
    $149.95 - $204.00
  6. 365 T-Shirt Bra365 T-Shirt Bra
    Panache 10905

    365 T-Shirt Bra

    $76.00
  7. Non Wired Sports BraNon Wired Sports Bra
    Panache 7341b

    Non Wired Sports Bra

    Rating:
    100%
    $54.95 - $71.00
  8. Superplunge Multiway Padded Plunge BraSuperplunge Multiway Padded Plunge Bra
    Curvy Kate ck2107

    Superplunge Multiway Padded Plunge Bra

    Rating:
    70%
    $68.00
  9. 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
  10. Porcelain Elan Strapless T-Shirt BraPorcelain Elan Strapless T-Shirt Bra
    Panache 7320

    Porcelain Elan Strapless T-Shirt Bra

    Rating:
    100%
    $71.00
  11. Smoothing Seamless Strapless BraSmoothing Seamless Strapless Bra
    Fantasie fl4530

    Smoothing Seamless Strapless Bra

    Rating:
    90%
    $72.00
  12. Felicia Strapless BraFelicia Strapless Bra
    Fit Fully Yours b1011

    Felicia Strapless Bra

    Rating:
    80%
    $74.00
  13. Harmony High Impact Underwire Sports BraHarmony High Impact Underwire Sports Bra
    Simone Perele 1sa262

    Harmony High Impact Underwire Sports Bra

    Rating:
    88%
    $95.00
  14. Evie Strapless BraEvie Strapless Bra
    Panache 5320

    Evie Strapless Bra

    Rating:
    79%
    $67.00 $53.95
  15. Alice Strapless BraAlice Strapless Bra
    Panache 11040

    Alice Strapless Bra

    $71.00
  16. Essentiel Strapless Plunge BraEssentiel Strapless Plunge Bra
    Simone Perele 13v303

    Essentiel Strapless Plunge Bra

    Rating:
    60%
    $69.95 - $90.00
  17. High Impact Everyday Sports BraHigh Impact Everyday Sports Bra
    Chantelle 15m1

    High Impact Everyday Sports Bra

    Rating:
    100%
    $88.00
  18. Delice Strapless BraDelice Strapless Bra
    Simone Perele 12x300

    Delice Strapless 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.