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 217

  1. Full-Busted Underwire Sports BraFull-Busted Underwire Sports Bra
    Panache 5021
    Full-Busted Underwire Sports Bra
    Rating:
    90%
    $44.95 - $79.00
  2. Deauville Full Cup BraDeauville Full Cup Bra
    Prima Donna 016-1810
    Deauville Full Cup Bra
    Rating:
    96%
    $109.95 - $165.00
  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 - $72.00
  5. Cassiopee Seamless Spacer Foam Underwire BraCassiopee Seamless Spacer Foam Underwire Bra
    Empreinte 40151
    Cassiopee Seamless Spacer Foam Underwire Bra
    Rating:
    93%
    $164.95 - $225.00
  6. Melody Underwired Seamless BraMelody Underwired Seamless Bra
    Empreinte 0786
    Melody Underwired Seamless Bra
    Rating:
    94%
    $154.95 - $212.00
  7. Ana Non-Padded Plunge Underwire BraAna Non-Padded Plunge Underwire Bra
    Panache 9396a
    Ana Non-Padded Plunge Underwire Bra
    Rating:
    91%
    $52.95 - $68.00
  8. Serena Lace Multi-Part Underwire BraSerena Lace Multi-Part Underwire Bra
    Fit Fully Yours b2761
    Serena Lace Multi-Part Underwire Bra
    Rating:
    60%
    $34.99 - $77.00
  9. Bliss Perfection Comfort Contour Underwire BraBliss Perfection Comfort Contour Underwire Bra
    Natori 721154
    Bliss Perfection Comfort Contour Underwire Bra
    Rating:
    95%
    $50.95 - $68.00
  10. Satin Seamless Underwire BraSatin Seamless Underwire Bra
    Prima Donna 016-1330
    Satin Seamless Underwire Bra
    Rating:
    89%
    $89.00
  11. Allure Full Cup Underwire BraAllure Full Cup Underwire Bra
    Panache 10765
    Allure Full Cup Underwire Bra
    Rating:
    90%
    $56.95 - $74.00
  12. Elise Molded Convertible BraElise Molded Convertible Bra
    Fit Fully Yours b1812
    Elise Molded Convertible Bra
    Rating:
    91%
    $51.95 - $90.00
  13. Idol Underwire T-Shirt BraIdol Underwire T-Shirt Bra
    Freya aa1050
    Idol Underwire T-Shirt Bra
    Rating:
    89%
    $50.95 - $70.00
  14. 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
  15. 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
  16. Norah Comfort Underwire BraNorah Comfort Underwire Bra
    Chantelle 13f1
    Norah Comfort Underwire Bra
    Rating:
    93%
    $59.95 - $82.00
  17. Clara Full Cup BraClara Full Cup Bra
    Panache 7255
    Clara Full Cup Bra
    Rating:
    88%
    $52.95 - $74.00
  18. SuperBra Tango II Underwire Balconnet BraSuperBra Tango II Underwire Balconnet Bra
    Panache 3251
    SuperBra Tango II Underwire Balconnet Bra
    Rating:
    83%
    $48.95 - $64.00
  19. Orlando Full Cup BraOrlando Full Cup Bra
    Prima Donna 016-3150
    Orlando Full Cup Bra
    Rating:
    100%
    $124.95 - $165.00
  20. Madison Seamless Non-Padded BraMadison Seamless Non-Padded Bra
    Prima Donna 026-2127
    Madison Seamless Non-Padded Bra
    Rating:
    100%
    $114.95 - $175.00
  21. Nicole Sheer Lace BraNicole Sheer Lace Bra
    Fit Fully Yours b2271
    Nicole Sheer Lace Bra
    Rating:
    90%
    $49.95 - $77.00
  22. 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
  23. Feathers Contour Plunge BraFeathers Contour Plunge Bra
    Natori 730023
    Feathers Contour Plunge Bra
    Rating:
    95%
    $43.95 - $68.00
  24. Ultra Perform Non Padded Sports BraUltra Perform Non Padded Sports Bra
    Panache 5022
    Ultra Perform Non Padded Sports Bra
    Rating:
    70%
    $59.95 - $79.00
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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.