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10DD

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Calvin Klein Liquid Touch Push Up Plunge Bra in Bare, worn by model—available at The Foundation for a seamless lift with lace trim and microfibre fabric.
 
Calvin Klein Liquid Touch Push Up Plunge Bra in Bare, worn by model—available at The Foundation for a seamless lift with lace trim and microfibre fabric.
Back view of full-body shot of Calvin Klein's Liquid Touch Push Up Plunge Bra in Bare with matching bottoms—supportive and smooth, from The Foundation.

Liquid Touch Push Up Plunge Bra Bare

$89.95
Front view of Triaction Wellness wire-free bra in Neutral Beige, showing soft contoured fit for gentle support.
 
Front view of Triaction Wellness wire-free bra in Neutral Beige, showing soft contoured fit for gentle support.
Back view of the Triaction Wellness bra Neutral Beige, featuring mesh-lined cups and adjustable straps.

Triaction Wellness Bra Neutral Beige

$49.95
Model in Back Appeal T-Shirt Bra Black – supportive dot jacquard fabric and smoothing design – The Foundation
 
Model in Back Appeal T-Shirt Bra Black – supportive dot jacquard fabric and smoothing design – The Foundation
Back Appeal Soft Cup T-Shirt Bra Black

Back Appeal Soft Cup T-Shirt Bra Black

$104.95
Front view of Triumph’s Black T-Shirt Bra with underwire support and smooth finish—exclusive at The Foundation.
 
Front view of Triumph’s Black T-Shirt Bra with underwire support and smooth finish—exclusive at The Foundation.
Side view of the Gorgeous T-Shirt Bra in Black by Triumph, showing lightly padded contour cups—shop now at The Foundation.

Gorgeous TShirt Bra Black

$54.95
Front view of Calvin Klein’s Liquid Touch Push Up Plunge Bra in Black from The Foundation—plunge neckline with luxe microfibre and lace trim.
 
Front view of Calvin Klein’s Liquid Touch Push Up Plunge Bra in Black from The Foundation—plunge neckline with luxe microfibre and lace trim.
Back view of Liquid Touch Push Up Plunge Bra in Black by Calvin Klein—adjustable straps and hook closure shown, available at The Foundation.

Liquid Touch Push Up Plunge Bra Black

$89.95
Front view of Triumph Triaction Wellness Bra in White, wire-free with mesh cups and wide straps—available at The Foundation.
 
Front view of Triumph Triaction Wellness Bra in White, wire-free with mesh cups and wide straps—available at The Foundation.
Back view of the Triaction Wellness Bra by Triumph in White with adjustable straps and active fit—shop at The Foundation.

Triaction Wellness Bra White

$49.95
Model lounging in Wacoal Halo Lace Moulded Bra in Nude, comfy, floral lace bra perfect for everyday support.
 
Model lounging in Wacoal Halo Lace Moulded Bra in Nude, comfy, floral lace bra perfect for everyday support.
Flat lay of Wacoal Halo Lace Nude Bra, stretch lace moulded cup bra with supportive underwire.

Halo Lace Moulded Underwire Bra Nude

$79.95
Front view of Triumph Triaction Control Lite Black sports bra from The Foundation, showing comfortable minimiser fit and wide straps
 
Front view of Triumph Triaction Control Lite Black sports bra from The Foundation, showing comfortable minimiser fit and wide straps
Back view of Triaction Control Lite Black sports bra, highlighting Dynamic Light® fabric and supportive design

Triaction Control Lite Black

$74.95
Front view of Halo Lace Moulded Underwire Bra in black lace—The Foundation
 
Front view of Halo Lace Moulded Underwire Bra in black lace—The Foundation
Model lounging in black floral lace bra and brief set—The Foundation

Halo Lace Moulded Underwire Bra Black

$79.95
Model wearing Bamboo Grove Underwire Plunge Swimsuit Jet by Fantasie, available at The Foundation, showing bold tropical print and deep V neckline.
 
Model wearing Bamboo Grove Underwire Plunge Swimsuit Jet by Fantasie, available at The Foundation, showing bold tropical print and deep V neckline.
Front view of Bamboo Grove Underwire Plunge Swimsuit Jet by Fantasie, available at The Foundation, tropical one-piece with plunging neckline.
Save up to 69%

Bamboo Grove Underwire Plunge Swimsuit Jet

$50.00 $164.95
Sexy Mesh Bra, Sexy bra for big cups. Teal Green sexy Bra. Plunge underwire bra, freya plunge bra for big boobs
 
Sexy Mesh Bra, Sexy bra for big cups. Teal Green sexy Bra. Plunge underwire bra, freya plunge bra for big boobs
Loveland UW Plunge Bra Bombshell Teal

Loveland UW Plunge Bra Bombshell Teal

$89.95
Front view of Panache Allure Full Cup Bra Ivory, luxury lace bra for fuller busts, modelled.
 
Front view of Panache Allure Full Cup Bra Ivory, luxury lace bra for fuller busts, modelled.
Close up of Panache Allure Full Cup Bra Ivory, side view showing elegant floral lace and supportive fit.

Allure Full Cup Bra Ivory

From $99.95
Close up of Allure Full Cup Bra Black by Panache, floral stretch lace, gold ring detail, designed for fuller busts.
 
Close up of Allure Full Cup Bra Black by Panache, floral stretch lace, gold ring detail, designed for fuller busts.
Panache Allure Full Cup Bra Black, three-quarter view showing wired support, Latte coloured lining, and luxurious lace.

Allure Full Cup Bra Black/Latte

$104.95
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Silhouette Island Underwire Monochrome Tankini
Silhouette Island Underwire Monochrome Tankini

Silhouette Island Underwire Monochrome Tankini

$154.95
Front view of model wearing Halo Lace Strapless Bra Nude, showcasing bandeau style and soft lace design
 
Front view of model wearing Halo Lace Strapless Bra Nude, showcasing bandeau style and soft lace design
Side view of Halo Lace Strapless Bra Nude on model, highlighting non-padded structure and convertible straps

Halo Lace Strapless Bra Nude

$79.95
Front view of Triumph Triaction Wellness Bra in Black, wire-free with mesh-lined cups—designed for low-intensity workouts at The Foundation.
 
Front view of Triumph Triaction Wellness Bra in Black, wire-free with mesh-lined cups—designed for low-intensity workouts at The Foundation.
Back view of Triaction Wellness Sports Bra by Triumph in Black, showing adjustable straps and full coverage—available at The Foundation.
Sold Out

Triaction Wellness Bra Black

Sold Out
Front view of Triumph Gorgeous T-Shirt Bra in Teint with seamless padded cups—everyday essential at The Foundation.
 
Front view of Triumph Gorgeous T-Shirt Bra in Teint with seamless padded cups—everyday essential at The Foundation.
Back view of the Teint Gorgeous T-Shirt Bra by Triumph, showing soft hook-and-eye closure—shop at The Foundation.

Gorgeous TShirt Bra Teint

$54.95
Close-up of Calvin Klein Perfectly Fit T-Shirt Bra Bare in nude, featuring seamless moulded cups, adjustable straps, and underwire support.
 
Close-up of Calvin Klein Perfectly Fit T-Shirt Bra Bare in nude, featuring seamless moulded cups, adjustable straps, and underwire support.
Model wearing Calvin Klein Perfectly Fit T-Shirt Bra Bare, a smooth nude bra with supportive underwire and microfibre fabric.

Perfectly Fit T-Shirt Bra Bare

$99.95
Woman wearing Halo Lace Underwire Bra in ivory with floral lace detail—The Foundation
 
Woman wearing Halo Lace Underwire Bra in ivory with floral lace detail—The Foundation
Front view of ivory lace underwire bra showcasing supportive cups—The Foundation

Halo Lace Moulded Underwire Bra Ivory

$79.95
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Allure Full Cup Bra Honey
Allure Full Cup Bra Honey

Allure Full Cup Bra Honey

$104.95
Model wearing Freya Loveland UW Plunge Bra in Deep Emerald, green mesh cups with metallic floral embroidery, low centre front.
 
Model wearing Freya Loveland UW Plunge Bra in Deep Emerald, green mesh cups with metallic floral embroidery, low centre front.
Flat lay of Freya Loveland Plunge Bra Deep Emerald, detailed mesh cups, metallic floral embroidery, gold gemstone charm at centre.

Loveland UW Plunge Bra Deep Emerald

$89.95
Front view of model wearing Halo Lace Strapless Bra Black, showcasing bandeau style and delicate lace texture
 
Front view of model wearing Halo Lace Strapless Bra Black, showcasing bandeau style and delicate lace texture
Halo Lace Strapless Bra - Non Padded by Wacoal

Halo Lace Strapless Bra Black

From $69.95
Model wearing Calvin Klein Perfectly Fit T-Shirt Bra Black, a seamless underwire bra with soft moulded cups, adjustable straps, and smooth finish.
 
Model wearing Calvin Klein Perfectly Fit T-Shirt Bra Black, a seamless underwire bra with soft moulded cups, adjustable straps, and smooth finish.
Back view of model in Calvin Klein Perfectly Fit T-Shirt Bra Black, showing adjustable straps and logo detail on the band.

Perfectly Fit T-Shirt Bra Black

$99.95
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Back Appeal Soft Cup T-Shirt Bra Rose Dust
Model wearing Wacoal Back Appeal Bra in Rose Dust – smoothing back design – The Foundation

Back Appeal Soft Cup T-Shirt Bra Rose Dust

$104.95

10DD Bra Size Collection

Understanding 10DD: A Confident Fit

Finding your best bra fit can completely transform how you feel—especially when you’re a 10DD. This size combines a snug band (around 70cm) with a fuller bust, making it ideal for curvy women seeking comfort and shape.

In Australian sizing, "10" is your band size and "DD" reflects a bust 18–20cm larger. It's a balance that suits fit women who value both style and solid support.

From supportive basics to elegant lace, our range includes sports bras, nursing bras, and seamless everyday options tailored for you.

Size Chart: International Equivalents for 10DD

Region Equivalent Size
Australia 10DD
UK 32DD
US 32DD/E
EU 70E
France 85E

How to Measure Your Bra Size (Tape Measure Guide)

    Finding your perfect size at home is simple:

    1. Band Size (Underbust)

      • Wrap a tape measure snugly around your ribcage, just under your bust.

      • The number you get should sit close to 70cm for a size 10 band.

    2. Bust Size (Overbust)

      • Measure around the fullest part of your bust.

      • Subtract the underbust number from this bust measurement.

      • A difference of 18–20cm? You're likely a DD cup.

    If you’re between sizes, check out your sister size—like 8E or 12D—to find the perfect fit with slight tweaks in band width.

    Sister Sizes and Alternatives

    Your cup volume stays the same, even if the band changes—this is where sister sizes come in. They help you achieve a better fit when your usual size feels too snug or too loose, or when your preferred style isn't available in your exact size:

    • Down a Band, Up a Cup: 8E
    • Up a Band, Down a Cup: 12D

    These variations in sizes are ideal for different body shapes and preferences.

    Best Bra Styles for 10DD

    Here are our top recommended styles for 10DD bras, each crafted to suit your needs for support, style, and comfort:

    • Lightly Padded Bras: Enhance shape without adding volume. Ideal for everyday wear.
    • Wireless Bras: Maximum comfort for curvy & full-bust women, perfect for lounging or casual days.
    • Seamless T-Shirt Bras: Smooth lines under clothing. Great for fitted outfits.
    • Full Cup Bras: Superior coverage and structured support for all-day confidence.
    • Balconette Bras: Offers a flattering lift and works beautifully under wide-neck tops.
    • Sports Bras: High-impact support for fit women on the move.
    • Nursing Bras: Practical and comfortable, tailored for new mums with easy access.

    Each of these styles is chosen to fit your cup size, band size, and overall body size, helping you look and feel amazing.

    Brands We Stock in Size 10DD

    We offer a premium range of options from trusted international brands:

    • Chantelle – Chic French engineering and comfort
    • Simone Perele – Feminine and functional
    • PrimaDonna – Iconic structure for fuller busts
    • Marie Jo – Sleek, everyday sophistication
    • Empreinte – Luxurious lift and design
    • Triumph – Everyday reliability and comfort
    • Wacoal– Lightweight construction and elegant support
    • Calvin Klein – Clean lines and modern essentials
    • Panache – Designed for fuller busts and active lifestyles
    • Freya – Trendy designs with firm support
    • Berlei – Trusted Australian comfort with smart engineering
    • Fantasie – Timeless support with feminine finishes

    Expert Fitting Services & Support

    Finding your fit is easy with our team of experienced fitters. Here’s how we support you:

    Whether you need a refresher or a total size rethink, we’re here to help you feel fabulous.

    Why Shop 10DD at The Foundation?

    We’re not just another online store—we’re your personal lingerie concierge.

    • Tailored to Australian bra sizes and curves
    • Backed by professional bra fittings and guides
    • Caring team and personalised support
    • Exclusive offers and style drops via email and SMS messages
    • Secure checkout with top-tier security service
    • Easy opt-outs with every unsubscribe link

    Ready to feel incredible in your next bra? Shop Now

    FAQs

    How do I know if 10DD is the right bra size for me?

    Measure your bust and underbust using a tape measure. Or visit us for a professional fitting.

    What does a DD cup mean?

    It means your bust is about 18–20cm bigger than your underbust, offering fuller cup coverage.

    Can I get supportive bras without underwire?

    Yes! We carry wireless styles made for full busts that provide lift, shape, and comfort.

    What are sister sizes and why do they matter?

    Sister sizes offer the same cup volume with slight changes in band fit—great if your usual size is sold out or uncomfortable.

    Do you deliver across Australia?

    Absolutely. Enjoy FREE shipping on all orders over $150.