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12E

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Front view of Saga Half Cup Bra Lipstick from The Foundation, showing vibrant lipstick red colour and detailed guipure lace
 
Front view of Saga Half Cup Bra Lipstick from The Foundation, showing vibrant lipstick red colour and detailed guipure lace
Saga Half Cup Bra Lipstick from The Foundation displayed flat, highlighting demi cup shape and beautiful embroidered details

Saga Half Cup Bra Lipstick

$149.95
Model wearing Jane Half Padded Balcony Bra Velvet Blue from The Foundation, showing delicate embroidery and elegant blue lace
 
Model wearing Jane Half Padded Balcony Bra Velvet Blue from The Foundation, showing delicate embroidery and elegant blue lace
Front view of Jane Half Padded Balcony Bra Velvet Blue from The Foundation, highlighting half padded cups and luxurious embroidered details

Jane Half Padded Balcony Bra Velvet Blue

$183.00
Model wearing the Jane Padded Heart Shape Bra in Velvet Blue, highlighting the deep plunge neckline and embroidered cups.
 
Model wearing the Jane Padded Heart Shape Bra in Velvet Blue, highlighting the deep plunge neckline and embroidered cups.
Front view of Jane Padded Heart Shape Bra Velvet Blue from The Foundation, featuring feminine plunge and delicate embroidery

Jane Padded Heart Shape Bra Velvet Blue

$174.00
Model wearing the Lace Maternity Bra in beige, showcasing the soft drop-down cups and wide supportive straps.
 
Model wearing the Lace Maternity Bra in beige, showcasing the soft drop-down cups and wide supportive straps.
Back view of the maternity bra highlighting the multi-hook closure and wide back band for extra support.

Lace Maternity Bra Beige

$69.95
Front view of The Foundation’s Waltz Half Cup Balcony Bra in Bright Poppy – demi cut with floral lace and vertical seaming for lift and femininity.
 
Front view of The Foundation’s Waltz Half Cup Balcony Bra in Bright Poppy – demi cut with floral lace and vertical seaming for lift and femininity.
Back view of Waltz Half Cup Balcony Bra Bright Poppy by The Foundation – featuring lace detail and adjustable straps for a supportive custom fit.

Waltz Half Cup Balcony Bra Bright Poppy

$149.00
Front view of the Simone Perele Caresse 3D Control Bodysuit Peau Rose, available at The Foundation – shaping mesh and lace detail shown on model.
 
Front view of the Simone Perele Caresse 3D Control Bodysuit Peau Rose, available at The Foundation – shaping mesh and lace detail shown on model.
Back view of the Caresse 3D Control Bodysuit Peau Rose by Simone Perele, sold by The Foundation – smooth finish ideal under dresses and fitted outfits.

Caresse 3D Control Bodysuit Peau Rose

$179.95
Front view of Triumph’s Beautiful Silhouette WDP Strapless Bra in nude, available at The Foundation—designed for invisible everyday wear.
 
Front view of Triumph’s Beautiful Silhouette WDP Strapless Bra in nude, available at The Foundation—designed for invisible everyday wear.
Close-up of nude strapless bra by Triumph with moulded cups and sleek silhouette—shop now at The Foundation.

Beautiful Silhouette WDP Strapless Bra Nude

$69.95
Model wearing Gorgeous Mama Maternity Bra in Nude with one cup unclipped to show drop-down nursing feature.
 
Model wearing Gorgeous Mama Maternity Bra in Nude with one cup unclipped to show drop-down nursing feature.
Front view of Model in full view wearing Gorgeous Mama Maternity Bra Nude with lace trim and padded underbust.

Gorgeous Mama Maternity Bra Nude

$59.95
Front view of the Maddie Half Cup Memory Bra in Soft Pink by Passionata, featuring floral lace and memory foam—available at The Foundation Australia.
 
Front view of the Maddie Half Cup Memory Bra in Soft Pink by Passionata, featuring floral lace and memory foam—available at The Foundation Australia.
Back view of the Maddie Memory Foam Bra Soft Pink by Passionata, showcasing leotard back and adjustable straps—shop this piece at The Foundation.

Maddie Half Cup Memory Bra Soft Pink

$79.95
Model wearing Maddie Plunge T-Shirt Bra in Soft Pink with floral lace, showcasing a low plunge neckline.
 
Model wearing Maddie Plunge T-Shirt Bra in Soft Pink with floral lace, showcasing a low plunge neckline.
Back view of Maddie Plunge T-Shirt Bra Soft Pink showing striped tulle back and leotard-style support.

Maddie Plunge Tshirt Bra Soft Pink

$89.95
Berlei Understate Wirefree Bra in Nude—find this comfy, invisible-fit bra for A-E cups, perfect for everyday support.
 
Berlei Understate Wirefree Bra in Nude—find this comfy, invisible-fit bra for A-E cups, perfect for everyday support.
Close up of Berlei Understate Wirefree Bra Nude—soft neckline and smooth lines for seamless wear under clothes.

Understate Wirefree Bra Nude

$69.95
PrimaDonna Devdaha Plunge Bra Velvet Blue – close-up of neon pink nasturtium embroidery on dark blue base.
 
PrimaDonna Devdaha Plunge Bra Velvet Blue – close-up of neon pink nasturtium embroidery on dark blue base.
Devdaha Plunge Bra in Velvet Blue – PrimaDonna lingerie with bold floral embroidery and padded cups, shown from side angle.

Devdaha Plunge Bra Velvet Blue

$199.95
Empreinte Cassiopee Seamless Full Cup Bra in Dark Purple worn by model, luxurious support for fuller busts.
 
Empreinte Cassiopee Seamless Full Cup Bra in Dark Purple worn by model, luxurious support for fuller busts.
Front view of Empreinte Cassiopee underwire bra in dark purple, showcasing seam-free lace design.
Sold Out

Cassiopee Underwire Seamless Full Cup Bra Dark Purple

Sold Out
front view of The Foundation’s Panache Sports Bra in Latte shown front-on, highlighting seamless cups and comfortable support.
 
front view of The Foundation’s Panache Sports Bra in Latte shown front-on, highlighting seamless cups and comfortable support.
back view of Panache Sports Bra in Latte from The Foundation, featuring racerback ring detail and wide cushioned straps.

Panache Sports Bra Latte

$112.95
front view of Model wears Madison Full Cup Bra in Scarlet, showcasing delicate lace and flattering fit – The Foundation
 
front view of Model wears Madison Full Cup Bra in Scarlet, showcasing delicate lace and flattering fit – The Foundation
front view of Madison Full Cup Bra Scarlet shown on model with deep cups and gingham lace detail – The Foundation

Madison Full Cup Bra Scarlet

$174.00
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Jane Padded Heart Shape Bra Bois De Rose
Jane Padded Heart Shape Bra Bois De Rose

Jane Padded Heart Shape Bra Bois De Rose

$174.00
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Nizza Wirefree Soft Moulded Cotton Bra Sand
Nizza Wirefree Soft Moulded Cotton Bra Sand

Nizza Wirefree Soft Moulded Cotton Bra Sand

$114.95
Model wearing Simone Perele Delice Half Cup Bra in Prestige Blue, sheer embroidered lace demi cup.
 
Model wearing Simone Perele Delice Half Cup Bra in Prestige Blue, sheer embroidered lace demi cup.
Back view of the Delice Half Cup Lace Bra in Prestige Blue, chic floral straps and sculpted shape.

Delice Half Cup Prestige Blue

$129.95
Front view of Simone Perele Delice Full Cup Plunge Bra in Prestige Blue with embroidered cups and a flattering plunge neckline.
 
Front view of Simone Perele Delice Full Cup Plunge Bra in Prestige Blue with embroidered cups and a flattering plunge neckline.
Back view of the Delice Full Cup Plunge Bra in Prestige Blue showing U-shaped ballet back and fully adjustable wide straps.

Delice Full Cup Plunge Bra Prestige Blue

$139.95
Lifestyle image of the Sophora Bodysuit in Royal blue with sheer tulle cups and embroidered detailing.
 
Lifestyle image of the Sophora Bodysuit in Royal blue with sheer tulle cups and embroidered detailing.
Front view of Sophora Royal Bodysuit with longline fit, underwire support and glittering embroidery.
Sold Out

Sophora Bodysuit Royal

Sold Out
Front view of Maddie Half Cup Bra in Soft Pink lace – The Foundation
 
Front view of Maddie Half Cup Bra in Soft Pink lace – The Foundation
Back view of Passionata Maddie Bra with U-shaped tulle back – The Foundation

Maddie Half Cup Bra Soft Pink

From $79.95
Marie Jo Tom Heart Shaped Bra in Scarlet – front view – The Foundation
 
Marie Jo Tom Heart Shaped Bra in Scarlet – front view – The Foundation
Side angle of Tom Convertible Bra in Scarlet showing deep plunge – The Foundation

Tom Padded Heart Shaped Convertible Bra Scarlet

$158.00
Chantelle Rive Gauche 3 Part Full Coverage Bra in Dune, worn by smiling model, showcasing unlined lace cups and supportive fit.
 
Chantelle Rive Gauche 3 Part Full Coverage Bra in Dune, worn by smiling model, showcasing unlined lace cups and supportive fit.
Back view of Rive Gauche Bra in Dune, showing leotard-style straps and mesh band for smooth comfort.

Rive Gauche 3 Part Full Coverage Bra Dune

$149.00
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Caresse Rigid Seamless T-Shirt Bra Peau Rose
Caresse Rigid Seamless T-Shirt Bra Peau Rose

Caresse Rigid Seamless T-Shirt Bra Peau Rose

$129.95

12E Bra Size – Comfort, Support & Style

Explore Our Range of 12E Bras for All Body Types

At The Foundation, we specialise in helping individuals of all shapes and sizes find their perfect fit. If you're searching for 12E bra size options that truly support and flatter, you’re in expert hands. This size suits a band size of 12 (or 70cm underbust) and an E cup, offering full coverage and comfort for a fuller bust with a narrower torso. Our collection brings together a wide range of bra styles designed to empower you to feel comfortable, confident and supported.

Understanding the 12E Bra Size

In Australian sizing, a size 12E is made for those with a 70cm band size and a bust measurement of approximately 95cm. The cup size reflects a larger volume, suitable for those needing enhanced support without increasing the body size. Our bras are designed to cater to different underwear sizes and support needs, so every customer can find a perfect match.

International Size Equivalents

Different bra size systems can be confusing, but we’ve simplified it with this international size chart:

Region Equivalent Size
Australia (AU) 12E
United Kingdom (UK) 34F
United States (US) 34DDD
Europe (EU) 75F
France (FR) 90F

For more clarity, explore our international bra size chart to match sizes across regions.

How to Measure Your Bra Size

Use a tape measure to find your fit or check out our fitting guide for step-by-step instructions:

  • Band size: Wrap the tape snugly around your ribcage under the bust. Round to the nearest even number in cm for your band size.
  • Bust size: Measure around the fullest part of your bust, keeping the tape flat but not tight.
  • Subtract the band size from the bust size to determine your size cup. A 12E usually reflects a 12.5cm (5-inch) difference.

Need help? Book a in-store fitting or explore our fitting guide for expert tips.

Sister Sizes & Sizing Alternatives

Sizing isn't always static. Consider sister sizes for flexibility:

  • 10F: Smaller band, same cup size
  • 14DD: Larger band, same cup size

Sister sizing helps accommodate variations in brands or body fluctuations. For example, if your 12E bra feels tight around the ribcage, try 14DD instead. We also offer a fuller bust lingerie bra range tailored for style and comfort.

The Best Bra Styles for 12E

Discover a range of bras designed to flatter and support fuller busts. Some of the most loved bra styles in our 12E collection include:

  • Lightly padded bras — gentle shaping without bulk
  • Wireless bras — support with unbeatable comfort
  • Seamless bras — invisible under any outfit
  • Full cup bras — ideal for everyday lift and coverage
  • Sports bras — designed for active, fit women who don’t want to compromise on comfort
  • Nursing bras — perfect for new mums needing function and support

Our collection supports variations in sizes and lifestyles, from casual comfort to high-impact support.

Shop Trusted Brands Offering 12E

Our curated brands range includes internationally trusted names known for premium quality and style:

Need help with product queries or bra fittings? Our team offers Expert Bra-fitting service both in-store and online, with personalised customer service to guide you at every step.

Enjoy exclusive offers and flexible payment over time options available year-round at checkout.

Ready to experience true comfort? Shop Now and explore our range of bra shapes for every occasion.

FAQs

What does a 12E bra size mean?

It represents a band size of 70cm and an E cup size, ideal for those with a fuller bust in a smaller body frame.

How do I confirm if 12E is my size?

Use a tape measure or visit our fitting guide, or book a virtual fitting with our team.

Are sister sizes like 10F or 14DD the same as 12E?

They offer the same cup volume with a different band size, useful for minor size adjustments.

Do you stock styles like sports bras or nursing bras in 12E?

Absolutely. We offer sports bras, nursing bras, and a wide range of everyday and specialty options for 12E.

Can I manage how I hear from you?

Yes, we occasionally send SMS messages to subscribed customers with updates and offers. All messages comply with local privacy laws, and you can opt out anytime via the included unsubscribe link.