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T-Shirt Bras

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Model in Chantelle C Magnifique Moulded Bra in Nude from The Foundation, featuring seamless full cups, minimising support, and soft mesh band.
 
Model in Chantelle C Magnifique Moulded Bra in Nude from The Foundation, featuring seamless full cups, minimising support, and soft mesh band.
Model in Chantelle C Magnifique Moulded Bra in Nude from The Foundation, featuring seamless full cups, minimising support, and soft mesh band. back view
Smiling model in Virginia Spacer Bra in Skin tone from The Foundation, featuring smooth cups, breathable spacer fabric, and a supportive fit.
 
Smiling model in Virginia Spacer Bra in Skin tone from The Foundation, featuring smooth cups, breathable spacer fabric, and a supportive fit.
Two models in Virginia Spacer Bra in Skin tone from The Foundation, featuring smooth cups, breathable spacer fabric, and a supportive fit.
Front view of Chantelle Norah Chic Plunge T-Shirt Bra Black on model featuring graphic lace and comfortable plunge fit.
 
Front view of Chantelle Norah Chic Plunge T-Shirt Bra Black on model featuring graphic lace and comfortable plunge fit.
Chantelle Norah Chic Plunge T-Shirt Bra Black laid flat showing chic print lace and eco-friendly design.
Triumph Triaction Ultra Seamfree Crop Top Black, angled view, seamless athletic bra with moisture-management, designed for all bust sizes.
 
Triumph Triaction Ultra Seamfree Crop Top Black, angled view, seamless athletic bra with moisture-management, designed for all bust sizes.
Triumph Triaction Ultra Seamfree Top Black, back view, cross-back straps, breathable and supportive sports bra for women, Triaction by Triumph.
Front view of Chantelle Norah Chic Plunge T-Shirt Bra Dusky Pink on model featuring chic lace and flattering plunge neckline.
 
Front view of Chantelle Norah Chic Plunge T-Shirt Bra Dusky Pink on model featuring chic lace and flattering plunge neckline.
Flat lay of Chantelle Norah Chic Plunge T-Shirt Bra Dusky Pink laid flat showing modern lace and eco-friendly design.
Virginia Spacer Bra in Black shown on model, featuring seamless cups and supportive spacer fabric.
 
Virginia Spacer Bra in Black shown on model, featuring seamless cups and supportive spacer fabric.
Virginia Spacer Bra in Black and Beige worn by two models showcasing fit and style versatility.
Model wearing PrimaDonna Deauville Full Cup Bra in Café Latte from The Foundation, with embroidered cups, side support, and a flattering fit.
 
Model wearing PrimaDonna Deauville Full Cup Bra in Café Latte from The Foundation, with embroidered cups, side support, and a flattering fit.
Model wearing PrimaDonna Deauville Full Cup Bra in Café Latte from The Foundation, with embroidered cups, side support, and a flattering fit. close up
Model wearing Chantelle’s C Magnifique Moulded Bra in Black from The Foundation, featuring full-coverage cups and a smoothing mesh back band.
 
Model wearing Chantelle’s C Magnifique Moulded Bra in Black from The Foundation, featuring full-coverage cups and a smoothing mesh back band.
Model wearing Chantelle’s C Magnifique Moulded Bra in Black from The Foundation, featuring full-coverage cups and a smoothing mesh back band. close up
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Soft Stretch Padded Top Nude
Soft Stretch Padded Top Nude
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Soft Stretch Padded Top Golden Beige
Soft Stretch Padded Top Golden Beige
Model wearing Empreinte Cassiopee bra in Rose Sauvage, showcasing seamless full coverage and luxe embroidery.
 
Model wearing Empreinte Cassiopee bra in Rose Sauvage, showcasing seamless full coverage and luxe embroidery.
Empreinte Cassiopee Seamless Full Cup Bra in Rose Sauvage, featuring delicate heat-treated lace and supportive full cups.
Empreinte Cassiopee Seamless Full Cup Bra in Silk, shown on model sitting down, showcasing intricate lace and full coverage.
 
Empreinte Cassiopee Seamless Full Cup Bra in Silk, shown on model sitting down, showcasing intricate lace and full coverage.
Cassiopee Underwire Seamless Full Cup Bra Silk
The Foundation’s Basic Invisible Memory Bra in Skin shown front-on, featuring smooth memory foam cups and a seamless fit.
 
The Foundation’s Basic Invisible Memory Bra in Skin shown front-on, featuring smooth memory foam cups and a seamless fit.
Back view of The Foundation’s Chantelle Memory Bra in Skin, showing supportive straps and a flat back band for all-day comfort.
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Norah Wirefree Support Bra Black
Norah Wirefree Support Bra Black
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.
Side view of The Foundation’s Norah Wirefree Support Bra in Golden Beige with delicate floral lace and soft moulded finish.
 
Side view of The Foundation’s Norah Wirefree Support Bra in Golden Beige with delicate floral lace and soft moulded finish.
Model wearing the Norah Wirefree Bra in Golden Beige by The Foundation—wire-free comfort with floral stretch lace.
Model wearing PrimaDonna Madison Full Cup Bra in Black—The Foundation
 
Model wearing PrimaDonna Madison Full Cup Bra in Black—The Foundation
Front view of black Madison lace bra with deep cups—The Foundation
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Soft Stretch Padded Top Noir
Soft Stretch Padded Top Noir
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.
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
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Soft Stretch Bralette Nude
Soft Stretch Bralette Nude
Front view of Cassiopee Seamless Full Cup Bra in Black, featuring heat-treated lace and a rounded silhouette.
 
Front view of Cassiopee Seamless Full Cup Bra in Black, featuring heat-treated lace and a rounded silhouette.
Back view of Cassiopee Black Bra with fully adjustable straps and smooth band for all-day comfort and lift.
Marie Jo Tom Padded Heart Shaped Bra in Cafe Latte – front view – The Foundation
 
Marie Jo Tom Padded Heart Shaped Bra in Cafe Latte – front view – The Foundation
Side view of Tom Convertible Bra in Cafe Latte with plunge neckline – The Foundation
Triaction Ultra Seamfree Top in Salsa Pink by Triumph shown on model, wireless activewear crop with cross-back straps and double-layered support
 
Triaction Ultra Seamfree Top in Salsa Pink by Triumph shown on model, wireless activewear crop with cross-back straps and double-layered support
Triaction Ultra Seamfree Top in Salsa Pink by Triumph shown on model, wireless activewear crop with cross-back straps and double-layered support

A good t-shirt bra is one of those everyday heroes that works quietly behind the scenes. It's your go-to for a smooth, seamless look under clothes—whether you're wearing a tee, blouse, or dress. At The Foundation, we offer a wide range of t-shirt bras from everyday essentials to premium pieces that blend comfort, support and invisible style.

Our collection includes customer favourites from Triumph, Chantelle, Calvin Klein, Empreinte, and more. From lightly padded styles to moulded lace cups that still disappear under clothes, there's something for every preference and outfit. Need help choosing? Pop in for a fitting at our Neutral Bay, Rozelle, or Bowral stores and let us help you find your perfect fit.

FAQs About T-Shirt Bras

1. What is the best colour for a t-shirt bra?

Nude or skin-tone bras are best under light-coloured clothing. Black works well under darker outfits. Fun fact—some shades of red actually disappear under white!

2. Can I wear a lace bra under a t-shirt?

You can, as long as the lace lies flat and your top isn’t too sheer. Styles like the Empreinte Cassiopee offer elegant lace and a smooth finish for invisibility under most fabrics.

3. How do I prevent bra lines from showing under a t-shirt?

Opt for seamless, lightly padded or moulded cups like the Triumph Gorgeous T-Shirt Bra. Make sure you’re in the right size to avoid bulging or digging in.

4. Should I size up or down in a t-shirt bra?

Not all t-shirt bras fit the same. Sizing can vary by brand and style—so it’s worth getting a professional fitting. You might wear two or three different sizes depending on cup shape and depth.

5. How often should I replace my t-shirt bra?

Every 6–12 months, depending on how often you wear it. Rotate your bras, and when your current one starts to feel stretched out or loses support, it’s time for a new one.