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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.
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 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
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.
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
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
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.
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.
Front view of Empreinte Verity Spacer T-Shirt Bra in Blush – soft, seamless finish – The Foundation
 
Front view of Empreinte Verity Spacer T-Shirt Bra in Blush – soft, seamless finish – The Foundation
Model showing side-back of Verity T-Shirt Bra – elegant blush tone and wide band – The Foundation
front view of Virginia Spacer Bra in Santa Fe Rose styled on model showing seamless full coverage – The Foundation
 
front view of Virginia Spacer Bra in Santa Fe Rose styled on model showing seamless full coverage – The Foundation
Virginia Spacer Bra Santa Fe Rose styled on two models, showcasing supportive and flattering fit – The Foundation
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
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Andora 3D Contour Bra Blush
Andora 3D Contour Bra Blush
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.
Front view of the Norah Covering Moulded Bra in Golden Cosmo from The Foundation—supportive and smoothing with French floral lace.
 
Front view of the Norah Covering Moulded Bra in Golden Cosmo from The Foundation—supportive and smoothing with French floral lace.
Close up of Norah Moulded Bra in Golden Cosmo by The Foundation—showcasing mesh top line and stretch lace pattern.
Save up to 30%
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.
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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
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
side view of the Pila Spacer Bra in Love Pink/Peach featuring soft tulle and full coverage – The Foundation.
 
side view of the Pila Spacer Bra in Love Pink/Peach featuring soft tulle and full coverage – The Foundation.
front view of Model wearing the Pila Spacer Bra in Love Pink/Peach, showcasing a full-coverage, breathable fit – The Foundation.
Save up to 30%
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Sophia Spacer T-Shirt Bra with J-Hook Soft Pink
Sophia Spacer T-Shirt Bra with J-Hook Soft Pink
Model wearing the Pila Covering Spacer Bra in Sailing Blue, showcasing its smooth 3D cups and clean neckline for a t-shirt-ready finish.
 
Model wearing the Pila Covering Spacer Bra in Sailing Blue, showcasing its smooth 3D cups and clean neckline for a t-shirt-ready finish.
Side profile highlighting the sheer tulle overlay on the molded spacer cups, offering a stylish and breathable layering effect.
Empreinte Cassiopee Spacer Bra in Rose Sauvage front view—seamless French lace bra featured at The Foundation Australia.
 
Empreinte Cassiopee Spacer Bra in Rose Sauvage front view—seamless French lace bra featured at The Foundation Australia.
Side view of Empreinte Cassiopee Rose Sauvage spacer bra—lightweight and elegant, available now from The Foundation.
The Foundation’s Chantelle Basic Invisible Memory Bra in Black—featuring a smooth, moulded cup for everyday support.
 
The Foundation’s Chantelle Basic Invisible Memory Bra in Black—featuring a smooth, moulded cup for everyday support.
Back view of the Basic Invisible Bra from The Foundation, showing adjustable straps and seamless finish in timeless black.
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.

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.