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T-Shirt Bras

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Model wearing PrimaDonna Deauville Full Cup Bra in Natural from The Foundation, featuring deep supportive cups and elegant embroidered detailing. front view
 
Model wearing PrimaDonna Deauville Full Cup Bra in Natural from The Foundation, featuring deep supportive cups and elegant embroidered detailing. front view
Model wearing PrimaDonna Deauville Full Cup Bra in Natural from The Foundation, featuring deep supportive cups and elegant embroidered detailing. close up
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Back Appeal Soft Cup T-Shirt Bra Cradle Pink
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Back Appeal Soft Cup T-Shirt Bra Regina Red
Back Appeal Soft Cup T-Shirt Bra Regina Red
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
Mohala Balcony Bra Pastel Pink by Prima Donna, feminine lace bra in pastel shades, worn by model, available at The Foundation.
 
Mohala Balcony Bra Pastel Pink by Prima Donna, feminine lace bra in pastel shades, worn by model, available at The Foundation.
Prima Donna Mohala Balcony Bra Pastel Pink, lace embroidered bra in pale blue and pink, detailed flat lay, The Foundation.
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Juliane Halter Bralette Bra Black
Juliane Halter Bralette Bra Black
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Soft Stretch Padded Bralette Midnight Monogram
Soft Stretch Padded Bralette Midnight Monogram
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Soft Stretch Bralette Peony Pink
Soft Stretch Bralette Peony Pink
A woman modeling a black strapless bandeau bra and matching black underwear against a solid gray studio background.
 
A woman modeling a black strapless bandeau bra and matching black underwear against a solid gray studio background.
Perfectly Fit Strapless Demi Bra Black
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Comete Plunging Moulded Underwire Bra Black
Comete Plunging Moulded Underwire Bra Black
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Triaction Ultra Seamfree Top Pink
Triaction Ultra Seamfree Top Pink
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Triaction Ultra Seamfree Top Peppermint
Triaction Ultra Seamfree Top Peppermint
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Soft Stretch Power Plunging Bra Golden Beige
Soft Stretch Power Plunging Bra Golden Beige
Woman wearing a brown sports bra and black leggings on a gray background
 
Woman wearing a brown sports bra and black leggings on a gray background
Woman wearing a brown sports bra and black leggings on a gray background
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Amour Underwire Seamless Full Cup Bra Black
Amour Underwire Seamless Full Cup Bra Black
Woman wearing Panache Sophie Maternity Bra Black/Chai, adjusting drop-down nursing cup, soft lace and cotton-lined.
 
Woman wearing Panache Sophie Maternity Bra Black/Chai, adjusting drop-down nursing cup, soft lace and cotton-lined.
Front view of Panache Sophie Maternity Bra Black/Chai on model, non-wired nursing bra with drop-down cups.
Pregnant model in Anita Seamless Maternity Sleep Bra Weiss Black, showing soft wirefree fit and gentle support, maternity comfort by The Foundation.
 
Pregnant model in Anita Seamless Maternity Sleep Bra Weiss Black, showing soft wirefree fit and gentle support, maternity comfort by The Foundation.
Close-up of Anita Seamless Maternity Sleep Bra Weiss Black, highlighting stretch fabric and seamless underbust band, from The Foundation.
Smiling pregnant model wearing Anita Seamless Maternity Sleep Bra White, showing soft stretch fit and wirefree comfort, from The Foundation.
 
Smiling pregnant model wearing Anita Seamless Maternity Sleep Bra White, showing soft stretch fit and wirefree comfort, from The Foundation.
Close-up of Anita Seamless Maternity Sleep Bra White, highlighting seamless finish and gentle bust support, available at The Foundation.
Front view of model wearing Gorgeous Maternity P Blusher Beige bra, highlighting wirefree design and comfortable fit
 
Front view of model wearing Gorgeous Maternity P Blusher Beige bra, highlighting wirefree design and comfortable fit
Back view  of Gorgeous Maternity P Blusher Beige maternity bra, showing adjustable straps and A-frame 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.