40F Bras Lingerie, and Swimwear | 40F 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 40D3 and see everything that comes in your F, DDD, and E cup sizes.

Search 40D4 and see everything that comes in your F, DDDD, and G cup sizes.

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  1. Cate Underwire Full Cup Banded BraCate Underwire Full Cup Banded Bra
    Elomi el4030

    Cate Underwire Full Cup Banded Bra

    Rating:
    93%
    $34.95 - $65.00
  2. Charley Underwire Spacer T-Shirt BraCharley Underwire Spacer T-Shirt Bra
    Elomi el4383

    Charley Underwire Spacer T-Shirt Bra

    Rating:
    94%
    $56.95 - $78.00
  3. C Magnifique Molded Minimizer Underwire BraC Magnifique Molded Minimizer Underwire Bra
    Chantelle 1891

    C Magnifique Molded Minimizer Underwire Bra

    Rating:
    90%
    $59.95 - $84.00
  4. Wonderwire Front Closure BraWonderwire Front Closure Bra
    Glamorise 1245

    Wonderwire Front Closure Bra

    Rating:
    90%
    $59.00 $44.25
  5. Norah Comfort Underwire BraNorah Comfort Underwire Bra
    New Color
    Chantelle 13f1

    Norah Comfort Underwire Bra

    Rating:
    93%
    $59.95 - $82.00
  6. Wonderwire Stretch Lace Front Closure BraWonderwire Stretch Lace Front Closure Bra
    Glamorise 9245

    Wonderwire Stretch Lace Front Closure Bra

    Rating:
    85%
    $57.00 $34.95 - $42.75
  7. Wonderfully 4 Part Cup Balcony BraWonderfully 4 Part Cup Balcony Bra
    Curvy Kate ck6110

    Wonderfully 4 Part Cup Balcony Bra

    Rating:
    74%
    $55.95 - $69.00
  8. 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
  9. 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
  10. Hedona Molded Underwire BraHedona Molded Underwire Bra
    Chantelle 2031

    Hedona Molded Underwire Bra

    Rating:
    89%
    $44.95 - $88.00
  11. Envisage Underwire Full Cup Bra With Side SupportEnvisage Underwire Full Cup Bra With Side Support
    Fantasie fl6911

    Envisage Underwire Full Cup Bra With Side Support

    Rating:
    96%
    $34.95 - $66.00
  12. Underwire High Impact Sports BraUnderwire High Impact Sports Bra
    Glamorise 9066

    Underwire High Impact Sports Bra

    Rating:
    86%
    $69.00 $39.95 - $51.75
  13. Caresse Minimizer BraCaresse Minimizer Bra
    Simone Perele 12a380

    Caresse Minimizer Bra

    Rating:
    91%
    $74.95 - $105.00
  14. Amazone Underwire BraAmazone Underwire Bra
    Chantelle 2101

    Amazone Underwire Bra

    Rating:
    92%
    $94.00
  15. Lace Comfort Wonderwire BraLace Comfort Wonderwire Bra
    Glamorise 9855

    Lace Comfort Wonderwire Bra

    Rating:
    50%
    $57.00 $42.75
  16. Wonderwire Front Closure T-Back BraWonderwire Front Closure T-Back Bra
    Glamorise 1246

    Wonderwire Front Closure T-Back Bra

    Rating:
    89%
    $59.00 $44.25
  17. Priya Plunge Underwire BraPriya Plunge Underwire Bra
    Elomi el4550

    Priya Plunge Underwire Bra

    $53.95 - $74.00
  18. Front Close Back Smoothing Wonderwire BraFront Close Back Smoothing Wonderwire Bra
    Glamorise 1247

    Front Close Back Smoothing Wonderwire Bra

    Rating:
    84%
    $59.00 $44.25
  19. Amaze 4-Part Balcony BraAmaze 4-Part Balcony Bra
    Curvy Kate ck2102

    Amaze 4-Part Balcony Bra

    $68.00 $47.95
  20. Envisage Moulded Spacer Underwire BraEnvisage Moulded Spacer Underwire Bra
    Fantasie fl6912

    Envisage Moulded Spacer Underwire Bra

    Rating:
    100%
    $47.95 - $77.00
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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.