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Plunge Bras

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Greta Bralette with Lace Fuchsia
Greta Bralette with Lace Fuchsia
Marie Jo Yoly Heart Shaped T-Shirt Bra in Jewel Green with fuchsia lace, lightly padded with embroidered cups and bold contrast trims.
 
Marie Jo Yoly Heart Shaped T-Shirt Bra in Jewel Green with fuchsia lace, lightly padded with embroidered cups and bold contrast trims.
Marie Jo Yoly Heart Shaped T-Shirt Bra in Jewel Green with fuchsia lace, lightly padded with embroidered cups and bold contrast trims.
Model wearing the Simone Perele Karma Wireless Triangle Bra in vibrant Bleu Myosotis, featuring plunging neckline and scalloped lace detailing.
 
Model wearing the Simone Perele Karma Wireless Triangle Bra in vibrant Bleu Myosotis, featuring plunging neckline and scalloped lace detailing.
Back angle of the Karma Triangle Bra showing multiway straps and delicate lace band for a barely-there feel.
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
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Greta Triangle Bralette Red
Greta Triangle Bralette Red
Woman wearing a black lace bralette against a plain background
 
Woman wearing a black lace bralette against a plain background
Woman wearing a black lace bra and panties set against a plain background
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Hanro Moments Soft Cup Bra White
Hanro Moments Soft Cup Bra White
Woman wearing a beige lace bra and panties set against a plain background
 
Woman wearing a beige lace bra and panties set against a plain background
Back view of a woman wearing a beige lace bra and panties set against a plain background
Berlei Understate Wirefree Bra in Black—available at The Foundation, designed for everyday comfort and invisibility under clothes.
 
Berlei Understate Wirefree Bra in Black—available at The Foundation, designed for everyday comfort and invisibility under clothes.
Back view of the Berlei Understate Wirefree Bra in Black from The Foundation—features smoothing side bands and soft, secure straps.
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.
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Jane Padded Heart Shape Bra Bois De Rose
Jane Padded Heart Shape Bra Bois De Rose
front view of Model wearing the Brooklyn Plunge T-Shirt Bra Gardenia from The Foundation – soft tulle, lace detail, and deep V neckline.
 
front view of Model wearing the Brooklyn Plunge T-Shirt Bra Gardenia from The Foundation – soft tulle, lace detail, and deep V neckline.
Back view of the Brooklyn Plunge T-Shirt Bra Gardenia from The Foundation – double-lined mesh band and adjustable straps.
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Model wearing the Manhattan Non Wire Triangle Bra in Talc with lightly padded cups and graphic tulle finish.
 
Model wearing the Manhattan Non Wire Triangle Bra in Talc with lightly padded cups and graphic tulle finish.
Back view of the Manhattan Non Wire Triangle Bra in Talc, showcasing striped-look band and wireless fit.
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
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Jane Push Up Bra Black
Jane Push Up Bra Black
Front view of the Marie Jo Avero Heart Shape Contour Bra in Atlantic Blue, showing light denim blue tone with daisy strap detail.
 
Front view of the Marie Jo Avero Heart Shape Contour Bra in Atlantic Blue, showing light denim blue tone with daisy strap detail.
Three-quarter view of model wearing the Avero bra in Atlantic Blue, highlighting supportive plunge cups and soft sheen fabric.
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Karma Wireless Triangle Bra Natural
Karma Wireless Triangle Bra Natural
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Karma Wireless Triangle Bra Black
Karma Wireless Triangle Bra Black
Model wearing Marie Jo Jane Padded Heart Shape Bra in Lazurite Blue from The Foundation, with embroidered cups, plunge neckline, and convertible straps.
 
Model wearing Marie Jo Jane Padded Heart Shape Bra in Lazurite Blue from The Foundation, with embroidered cups, plunge neckline, and convertible straps.
Model wearing Marie Jo Jane Padded Heart Shape Bra in Lazurite Blue from The Foundation, with embroidered cups, plunge neckline, and convertible straps. front view
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Comete Plunging Moulded Underwire Bra Black
Comete Plunging Moulded Underwire Bra Black
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Embrace Lace Plunge Underwire Bra Angel Wing/Rose Dust
Embrace Lace Plunge Underwire Bra Angel Wing/Rose Dust
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Lush Plunge T-Shirt Bra Miami Pink
Lush Plunge T-Shirt Bra Miami Pink
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Norah Chic Plunge T-Shirt Bra Candy Pink
Norah Chic Plunge T-Shirt Bra Candy Pink
Woman wearing black lace lingerie against a gray background
 
Woman wearing black lace lingerie against a gray background
Woman wearing a black lace lingerie set on a plain background

Every lingerie drawer needs a good plunge bra. Designed for low-cut tops and dresses, plunge bras create a flattering shape and enhanced cleavage—without compromising on support. Whether you're dressing for date night, a special event, or simply prefer a deeper neckline, a plunge style is your go-to.

At The Foundation, we offer plunge bras in a wide range of sizes and shapes to suit every body. From structured and padded styles to softer, seamless options, you’ll find a plunge bra that fits like it was made for you. Our most-loved brands include Chantelle, PrimaDonna, Marie Jo, Simone Perele, Passionata, Panache & more.

Need help finding your perfect fit? Our team of expert bra fitters is here to help at our stores in Neutral Bay, Rozelle, and Bowral. Book a free fitting and let us help you discover the plunge style that’s just right for you.

What is a plunge bra?

A plunge bra has a deep centre front and angled cups, making it ideal for low-cut tops or dresses. It creates cleavage without adding bulk and is designed to stay hidden under plunging necklines.

Can you wear plunge bras every day?

Yes! Many plunge bras are designed for daily comfort and support. They can give a flattering shape under most outfits—not just for special occasions.

Are plunge bras suitable for bigger busts?

Absolutely. We stock plunge bras for D cups and up, with side support panels and wider straps to keep you lifted and comfortable. Brands like PrimaDonna and Panache cater beautifully to fuller figures.

What’s the difference between a plunge bra and a push-up bra?

Plunge bras focus on shape and neckline, while push-up bras add padding to enhance cleavage. Some plunge styles have light padding, but they’re more about contouring than boosting volume.

Can I get fitted for a plunge bra at The Foundation?

Of course! Visit us in-store at Neutral Bay, Rozelle, or Bowral for a professional bra fitting. We’ll help you find the perfect plunge bra based on your size, shape, and style preferences.