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T-Shirt Bras

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Front view of Marie Jo Tom Padded Balcony Convertible Bra in Charcoal, showcasing elegant lift and convertible strap design.
 
Front view of Marie Jo Tom Padded Balcony Convertible Bra in Charcoal, showcasing elegant lift and convertible strap design.
Side angle of Tom Balcony Bra Charcoal, highlighting padded cups and underwire fit for natural cleavage.
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Jane Padded Heart Shape Bra Natural
Front view of Marie Jo Jane Padded Heart Shape Bra in Natural – The Foundation
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Jane Padded Heart Shape Bra Black
Marie Jo Jane Heart Shape Contour Bra in black, showing delicate embroidery and lightly padded cups for a smooth, rounded silhouette.
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Back Appeal Soft Cup T-Shirt Bra Cradle Pink
Front view of Empreinte Verity Spacer T-Shirt Bra in Ardoise—lightweight full cup bra at The Foundation
 
Front view of Empreinte Verity Spacer T-Shirt Bra in Ardoise—lightweight full cup bra at The Foundation
Side profile of Verity Spacer Bra Ardoise on model—comfortable seamless t-shirt bra
Berlei Barely There Contour Bra in Black, classic t-shirt bra with seamless contoured cups, worn by model, available at The Foundation.
 
Berlei Barely There Contour Bra in Black, classic t-shirt bra with seamless contoured cups, worn by model, available at The Foundation.
Side view of Berlei Barely There Contour Bra Black, highlighting smooth silhouette and comfy straps, The Foundation lingerie.
Model wearing Berlei Barely There Contour Bra Skin – seamless, comfy t-shirt bra with full-cup support.
 
Model wearing Berlei Barely There Contour Bra Skin – seamless, comfy t-shirt bra with full-cup support.
Berlei Barely There Bra in Skin – side view showing cushioned straps and a smooth silhouette.
Model in Passionata Brooklyn Plunge T-Shirt Bra in Black from The Foundation, with low centre plunge, foam underwire cups, and smooth lace detail. front view
 
Model in Passionata Brooklyn Plunge T-Shirt Bra in Black from The Foundation, with low centre plunge, foam underwire cups, and smooth lace detail. front view
Model in Passionata Brooklyn Plunge T-Shirt Bra in Black from The Foundation, with low centre plunge, foam underwire cups, and smooth lace detail. back view
Model in Chantelle C Magnifique Moulded Bra in Rose from The Foundation, showcasing full-coverage cups and supportive smoothing mesh back.
 
Model in Chantelle C Magnifique Moulded Bra in Rose from The Foundation, showcasing full-coverage cups and supportive smoothing mesh back.
Model in Chantelle C Magnifique Moulded Bra in Rose from The Foundation, showcasing full-coverage cups and supportive smoothing mesh back.
Model wearing the Chantelle C Magnifique Moulded Bra in Slate Grey from The Foundation, featuring full-coverage cups and smoothing back band.
 
Model wearing the Chantelle C Magnifique Moulded Bra in Slate Grey from The Foundation, featuring full-coverage cups and smoothing back band.
Model wearing the Chantelle C Magnifique Moulded Bra in Slate Grey from The Foundation, featuring full-coverage cups and smoothing back band. close up view
Save up to 30%
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.
Save up to 30%
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Caresse Rigid Seamless T-Shirt Bra Black
Caresse Rigid Seamless T-Shirt Bra Black
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Nerina Moulded Spacer T-Shirt Bra Sahara
Nerina Moulded Spacer T-Shirt Bra Sahara
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Back Appeal Soft Cup T-Shirt Bra Regina Red
Back Appeal Soft Cup T-Shirt Bra Regina Red
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Subtile 3D Plunge Contour Bra Black
Subtile 3D Plunge Contour Bra Black
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Subtile 3D Plunge Contour Bra Peau Rose
Subtile 3D Plunge Contour Bra Peau Rose
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Andora 3D Contour Bra Black
Andora 3D Contour Bra Black
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Back Appeal Front Close T-Shirt Bra Rose Dust
Back Appeal Front Close T-Shirt Bra Rose Dust
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Caresse Rigid Seamless T-Shirt Bra Peau Rose
Caresse Rigid Seamless T-Shirt Bra Peau 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.
Save up to 30%
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
Save up to 30%
Empreinte Cassiopée Spacer Bra in Black with lace detail and supportive plunge neckline.
 
Empreinte Cassiopée Spacer Bra in Black with lace detail and supportive plunge neckline.
Back view of Cassiopée Spacer Bra Black showing adjustable multiway straps and lace band.
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Jane Padded Heart Shape Bra Bois De Rose
Jane Padded Heart Shape Bra Bois De Rose
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

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.