30G Bras, Lingerie, and Swimwear | 30G Bra Size

G Bra Cup Size (Your UCS is either a D4 or a D6 )

Your G cup size can be a little tricky between different brands.  If you're a G cup size in EU brands like Chantelle, Empreiente, Prima Donna, Anita, Simone Perele, you are also a G cup size in USA brands like Wacoal, Bali, Natori, and Vanity Fair (formerly called a DDDD cup size).  However, you are also an F cup size in UK brands like Elomi, Freya, Panache, Fantasie, and Curvy Kate. 

But..., if you're a G cup size in UK brands, you are also an I cup size in both US brands and EU brands. A UK G cup size is 2 cup sizes larger than a EU and US G cup size.

At HerRoom, we make finding everything availabe in your cup size easy with our exclusive Universal Cup Sizing (UCS).

Search 30D4 to see everything that comes in your G, DDDD, and F cup sizes.

Search 30D6 to see everything that comes in your G, and I cup sizes.

Items 1-24 of 221

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

    Full-Busted Underwire Sports Bra

    Rating:
    60%
    $44.95 - $75.00
  2. Deauville Full Cup BraDeauville Full Cup Bra
    Prima Donna 016-1810

    Deauville Full Cup Bra

    Rating:
    96%
    $109.95 - $159.00
  3. Cassiopee Seamless Embroidery Full Cup BraCassiopee Seamless Embroidery Full Cup Bra
    Empreinte 07151

    Cassiopee Seamless Embroidery Full Cup Bra

    Rating:
    96%
    $164.95 - $225.00
  4. Envy Balconnet BraEnvy Balconnet Bra
    Panache 7285

    Envy Balconnet Bra

    Rating:
    93%
    $52.95 - $71.00
  5. Cassiopee Seamless Spacer Foam Underwire BraCassiopee Seamless Spacer Foam Underwire Bra
    Empreinte 40151

    Cassiopee Seamless Spacer Foam Underwire Bra

    Rating:
    93%
    $149.95 - $225.00
  6. Melody Underwired Seamless BraMelody Underwired Seamless Bra
    Empreinte 0786

    Melody Underwired Seamless Bra

    Rating:
    94%
    $154.95 - $212.00
  7. Serena Lace Multi-Part Underwire BraSerena Lace Multi-Part Underwire Bra
    Fit Fully Yours b2761

    Serena Lace Multi-Part Underwire Bra

    $34.99 - $77.00
  8. Ana Non-Padded Plunge Underwire BraAna Non-Padded Plunge Underwire Bra
    Panache 9396a

    Ana Non-Padded Plunge Underwire Bra

    Rating:
    90%
    $52.95 - $71.00
  9. Satin Seamless Underwire BraSatin Seamless Underwire Bra
    Prima Donna 016-1330

    Satin Seamless Underwire Bra

    Rating:
    89%
    $89.00
  10. Allure Full Cup Underwire BraAllure Full Cup Underwire Bra
    Panache 10765

    Allure Full Cup Underwire Bra

    Rating:
    100%
    $56.95 - $71.00
  11. Idol Underwire T-Shirt BraIdol Underwire T-Shirt Bra
    Freya aa1050

    Idol Underwire T-Shirt Bra

    Rating:
    89%
    $50.95 - $70.00
  12. Elise Molded Convertible BraElise Molded Convertible Bra
    Fit Fully Yours b1812

    Elise Molded Convertible Bra

    Rating:
    91%
    $51.95 - $90.00
  13. Fusion Underwire Full Cup Side Support BraFusion Underwire Full Cup Side Support Bra
    Fantasie fl3091

    Fusion Underwire Full Cup Side Support Bra

    Rating:
    83%
    $37.95 - $66.00
  14. Active Maximum Support Wire Free Sports BraActive Maximum Support Wire Free Sports Bra
    Anita 5527

    Active Maximum Support Wire Free Sports Bra

    Rating:
    89%
    $58.95 - $79.00
  15. Norah Comfort Underwire BraNorah Comfort Underwire Bra
    New Color
    Chantelle 13f1

    Norah Comfort Underwire Bra

    Rating:
    93%
    $59.95 - $82.00
  16. Orlando Full Cup BraOrlando Full Cup Bra
    Prima Donna 016-3150

    Orlando Full Cup Bra

    Rating:
    100%
    $124.95 - $159.00
  17. Feathers Contour Plunge BraFeathers Contour Plunge Bra
    New Color
    Natori 730023

    Feathers Contour Plunge Bra

    Rating:
    95%
    $43.95 - $68.00
  18. Clara Full Cup BraClara Full Cup Bra
    Panache 7255

    Clara Full Cup Bra

    Rating:
    89%
    $52.95 - $71.00
  19. 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
  20. SuperBra Tango II Underwire Balconnet BraSuperBra Tango II Underwire Balconnet Bra
    Panache 3251

    SuperBra Tango II Underwire Balconnet Bra

    Rating:
    83%
    $48.95 - $66.00
  21. Nicole Sheer Lace BraNicole Sheer Lace Bra
    Fit Fully Yours b2271

    Nicole Sheer Lace Bra

    Rating:
    90%
    $49.95 - $77.00
  22. Madison Seamless Non-Padded BraMadison Seamless Non-Padded Bra
    Prima Donna 026-2127

    Madison Seamless Non-Padded Bra

    Rating:
    100%
    $114.95 - $154.00
  23. Ultra Perform Non Padded Sports BraUltra Perform Non Padded Sports Bra
    Panache 5022

    Ultra Perform Non Padded Sports Bra

    Rating:
    70%
    $59.95 - $75.00
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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.