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One Piece Swimsuits

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Aloha Tie Front DD/E Cup One Piece Swimsuit Navy
Aloha Tie Front DD/E Cup One Piece Swimsuit Navy
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Messina Panel Line One Piece French Navy
Messina Panel Line One Piece French Navy
Save up to 50%
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Sublime Cross Back Tri One Piece Swimsuit Blue
Sublime Cross Back Tri One Piece Swimsuit Blue
Save up to 64%
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India Hicks Border Surf Suit Black
India Hicks Border Surf Suit Black
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India Hicks Lattice One Piece Swimsuit Black
India Hicks Lattice One Piece Swimsuit Black
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Saint Lucia Underwire Twist Front One Piece Black
Saint Lucia Underwire Twist Front One Piece Black
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Tabitha Crossover One Piece Navy
Tabitha Crossover One Piece Navy
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Cappadocia Criss Cross Escape UW Shaping One Piece Swimsuit
Cappadocia Criss Cross Escape UW Shaping One Piece Swimsuit
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Selenite Layered Escape UW Shaping One Piece Swimsuit
Selenite Layered Escape UW Shaping One Piece Swimsuit
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Honeycomb Cross Front Multifit One Piece Cobalt
Honeycomb Cross Front Multifit One Piece Cobalt
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Essentials Twist Front Multifit One Piece Night Sky
Essentials Twist Front Multifit One Piece Night Sky
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Essentials Twist Front Multifit One Piece Khaki
Essentials Twist Front Multifit One Piece Khaki
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Prism Minimal Surplice One Piece - Rose
Prism Minimal Surplice One Piece - Rose
Save up to 68%
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Prism Minimal Surplice One Piece - Black
Prism Minimal Surplice One Piece - Black
Save up to 68%
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Sunset High Neck Mast One Piece - White
Sunset High Neck Mast One Piece - White
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Rococco D-E Ring One Piece Nero
Rococco D-E Ring One Piece Nero
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Klimt One Piece Black
Klimt One Piece Black
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Chantique Hayes Underwire One Piece
Chantique Hayes Underwire One Piece
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Cosmopolitan DDE Ruch Mesh Frill One Piece Navy
Cosmopolitan DDE Ruch Mesh Frill One Piece Navy
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Model wearing the Empreinte Cosmic V-Neck One Piece swimsuit in Lichen green with gold strap detail and flattering neckline.
 
Model wearing the Empreinte Cosmic V-Neck One Piece swimsuit in Lichen green with gold strap detail and flattering neckline.
Front view of Model showcasing full fit of the Cosmic V-Neck swimsuit in earthy Lichen, with smooth shaping and elegant silhouette.
Save up to 50%
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Network Madero Underwire Shaping Swimsuit Midnight Blue
Network Madero Underwire Shaping Swimsuit Midnight Blue
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Network Mystique Underwire Shaping Swimsuit Black
Network Mystique Underwire Shaping Swimsuit Black
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Palms Splice Mastectomy One Piece Arctic
Palms Splice Mastectomy One Piece Arctic

At The Foundation, we offer a diverse collection of flattering one piece swimsuits to suit every body type and bust size. As expert bra fitters, we know what real support looks and feels like—so we’ve handpicked styles that combine comfort, confidence, and great design.

Whether you prefer sleek zip-front surf suits, classic scoop necks, or one-pieces with built-in bra support, we have you covered. Our brands include trusted names like Baku, Sunseeker, Jantzen, Bond-Eye, Sea Level and Miracle Suit—so you know you're getting quality, shape-enhancing swimwear that lasts.

We also stock SeaSport and surf suits for active days in the sun. If you’re looking for practical, supportive, and stylish swimwear, check out our full range of one piece swimmers—online or in-store at Neutral Bay, Rozelle, or Lin & Barrett in Bowral.

FAQs About One Piece Swimwear

Are one piece swimsuits good for bigger busts?

Yes! Many of our styles offer built-in cup support or underwires. Brands like Sea Level and Jantzen are known for supportive swimwear that caters to fuller busts.

What’s the difference between a regular one piece and a surf suit?

Surf suits often feature zip-fronts, long sleeves and are designed for active water sports. They offer more sun protection and stay put during movement.

Do you have tummy control options?

Absolutely. We stock brands like Miracle Suit that offer shaping technology for a more defined silhouette and enhanced confidence poolside or beachside.

Can I try them on in-store?

Yes! Visit us at The Foundation in Neutral Bay or Rozelle, or Lin & Barrett in Bowral for expert help with fit and style. Our team will help you find the perfect one piece swimsuit for your shape and lifestyle.

What sizes do you carry?

We offer a wide range of inclusive sizes across our one piece swimwear. If you're unsure about fit, we recommend popping in-store for a personalised fitting session.