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Cup B

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Front view of The Foundation’s Waltz Half Cup Balcony Bra in Bright Poppy – demi cut with floral lace and vertical seaming for lift and femininity.
 
Front view of The Foundation’s Waltz Half Cup Balcony Bra in Bright Poppy – demi cut with floral lace and vertical seaming for lift and femininity.
Back view of Waltz Half Cup Balcony Bra Bright Poppy by The Foundation – featuring lace detail and adjustable straps for a supportive custom fit.

Waltz Half Cup Balcony Bra Bright Poppy

$149.00
Simone Perele Caresse 3D Control Bodysuit in Black at The Foundation – sleek front view with scalloped lace and underwire support.
 
Simone Perele Caresse 3D Control Bodysuit in Black at The Foundation – sleek front view with scalloped lace and underwire support.
Front view of the Caresse 3D Control Bodysuit Black, available at The Foundation – classic shaping silhouette with lace leg detailing.

Caresse 3D Control Bodysuit Black

$179.95
Front view of the Simone Perele Caresse 3D Control Bodysuit Peau Rose, available at The Foundation – shaping mesh and lace detail shown on model.
 
Front view of the Simone Perele Caresse 3D Control Bodysuit Peau Rose, available at The Foundation – shaping mesh and lace detail shown on model.
Back view of the Caresse 3D Control Bodysuit Peau Rose by Simone Perele, sold by The Foundation – smooth finish ideal under dresses and fitted outfits.

Caresse 3D Control Bodysuit Peau Rose

$179.95
Model wears Susa Latina Soft Bra Black from The Foundation – supportive wirefree bra with lace trim and cotton-lined cups.
 
Model wears Susa Latina Soft Bra Black from The Foundation – supportive wirefree bra with lace trim and cotton-lined cups.
Susa Latina Soft Bra Black flat lay from The Foundation – non-wired lace bra with 3-part supportive cup and flattering structure.

Latina Soft Bra Black

$89.95
Angled view of the Kiss of Cotton bra in Fresh Powder – Triumph’s wirefree classic with lace detail, available at The Foundation.
 
Angled view of the Kiss of Cotton bra in Fresh Powder – Triumph’s wirefree classic with lace detail, available at The Foundation.
Close up of the Kiss of Cotton Wirefree Bra in Fresh Powder, available at The Foundation – soft cotton blend with floral lace for everyday support.

Kiss of Cotton Wirefree Bra Fresh Powder

$64.95
Front view of the PrimaDonna Deauville Bodysuit in Black, with lace cups and smoothing shape, available at The Foundation.
 
Front view of the PrimaDonna Deauville Bodysuit in Black, with lace cups and smoothing shape, available at The Foundation.
Flat lay of Deauville Bodysuit in Black by PrimaDonna, showing underwire design and elegant lace detailing, stocked by The Foundation.

Deauville Bodysuit Black

$280.00
Lifestyle image of model wearing the PrimaDonna Orlando Full Cup Bra in Crazy Blue, featuring shimmer embroidery, available at The Foundation.
 
Lifestyle image of model wearing the PrimaDonna Orlando Full Cup Bra in Crazy Blue, featuring shimmer embroidery, available at The Foundation.
Front view of the PrimaDonna Orlando Full Cup Bra in Crazy Blue, with full coverage and deep cups for lift and support, from The Foundation.

Orlando Full Cup Bra Crazy Blue

$189.95
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.

Brooklyn Plunge T-Shirt Bra Gardenia

$89.95
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Nizza Wirefree Soft Moulded Cotton Bra Sand
Nizza Wirefree Soft Moulded Cotton Bra Sand

Nizza Wirefree Soft Moulded Cotton Bra Sand

$114.95
Model wearing PrimaDonna Orlando Full Cup Bra in Eye Shadow – styled for The Foundation’s signature comfort and elegance.
 
Model wearing PrimaDonna Orlando Full Cup Bra in Eye Shadow – styled for The Foundation’s signature comfort and elegance.
Front view of the PrimaDonna Orlando Full Cup Bra in Eye Shadow, shown on model for The Foundation.

Orlando Full Cup Bra Eye Shadow

$183.00
Front view of Simone Perele Delice Full Cup Plunge Bra in Prestige Blue with embroidered cups and a flattering plunge neckline.
 
Front view of Simone Perele Delice Full Cup Plunge Bra in Prestige Blue with embroidered cups and a flattering plunge neckline.
Back view of the Delice Full Cup Plunge Bra in Prestige Blue showing U-shaped ballet back and fully adjustable wide straps.

Delice Full Cup Plunge Bra Prestige Blue

$139.95
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.

Avero Heart Shape Contour Bra Atlantic Blue

$159.95
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

Deauville Full Cup Bra Natural

$192.00
Berlei electrify mesh underwire sports bra for women in black YYN7
 
Berlei electrify mesh underwire sports bra for women in black YYN7
Berlei electrify mesh underwire sports bra for women in black YYN7 cross back straps

Electrify Mesh Underwire Sports Bra Black

$64.95
Front view of Maddie Half Cup Bra in Sailor navy lace – The Foundation
 
Front view of Maddie Half Cup Bra in Sailor navy lace – The Foundation
Back view of Passionata Maddie Half Cup Bra with striped tulle detail – The Foundation

Maddie Half Cup Bra Sailor

$79.95
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

Jane Padded Heart Shape Bra Lazurite

$159.95
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Parisian Allure Plunge Bra White

Sold Out
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Karma 3D Moulded Plunge Bra Black
Karma 3D Moulded Plunge Bra Black

Karma 3D Moulded Plunge Bra Black

$159.95
Model in Gorgeous Mama Maternity Bra Black showing nursing clip on cup with lace trim.
 
Model in Gorgeous Mama Maternity Bra Black showing nursing clip on cup with lace trim.
Front view of Model wearing full-view Gorgeous Mama Maternity Bra in black with wide band and supportive design.

Gorgeous Mama Maternity Bra Black

$59.95
Model wearing Gorgeous Mama Maternity Bra in Nude with one cup unclipped to show drop-down nursing feature.
 
Model wearing Gorgeous Mama Maternity Bra in Nude with one cup unclipped to show drop-down nursing feature.
Front view of Model in full view wearing Gorgeous Mama Maternity Bra Nude with lace trim and padded underbust.

Gorgeous Mama Maternity Bra Nude

$59.95
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Romance Wirefree Support T-Shirt Bra Golden Beige
smooth wirefree bra, non wire t-shirt bra, moulded wirefree t-shirt bra, large cup wire free bra, big boobs wirefree bra

Romance Wirefree Support T-Shirt Bra Golden Beige

$139.00
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.

Yoly Heart Shaped T-Shirt Bra Jewel Green

$189.95
Panache Endurance Sports Bra in Black front view, showing smooth cups and V-neckline.
 
Panache Endurance Sports Bra in Black front view, showing smooth cups and V-neckline.
front view of Model wearing the Endurance Wired Sports Bra in Black highlighting the sporty cut and fit.

Endurance Wired Sports Bra Black

$112.95
Woman wearing the Electrify Mesh Underwire Sports Bra in Soft Powder, front view with sports styling, available at The Foundation.
 
Woman wearing the Electrify Mesh Underwire Sports Bra in Soft Powder, front view with sports styling, available at The Foundation.
Active woman outdoors in the Electrify Mesh Underwire Sports Bra Soft Powder, highlighting comfort and support from The Foundation.

Electrify Mesh Underwire Sports Bra Soft Powder

$64.95

Designed to Fit. Made to Feel Good. Explore Our Bra Cup B Collection

When you’re a B-cup, you’re right in that sweet spot—but let’s face it, not all bras get it right. At The Foundation, we believe that every cup size deserves thoughtful support and everyday luxury. That’s why our Bra Cup B collection is packed with perfectly-fitting styles that don’t compromise on comfort, shape or beauty.

From everyday essentials to chic, fashion-forward pieces, each bra is handpicked from trusted international brands like Chantelle, Simone Perele, PrimaDonna and more. Think contouring fits, wireless ease, and soft fabrics that move with you—no pinching, no padding drama, just bras you’ll actually want to wear.

Not sure which B-cup size or style is right for you? View our size chart or book a fitting with our expert team in-store for guidance you can trust.

Feel supported. Feel beautiful. Find your perfect match in our B-cup bra collection today.