E Cup One Piece Swimsuits

E cup one-piece swimsuits built on real bra construction — underwired cups, firm bands and full coverage that stays put. Sizes 6 to 20.

E Cup Swimwear | E Cup Bras | Onepiece Swimwear | E Cup Bikini Tops | Swimsuits
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Rosa Faia Elouise Zip Front Swimsuit BlackRosa Faia Swimwear - Swimsuit Rosa Faia Elouise Zip Front Swimsuit Black
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Rosa Faia Elouise Zip Front Swimsuit Black
Sale price $159.95
Regular price $159.95 Sale price $149.95
Panache Spirit Rita Plunge Swimsuit BlackPanache Spirit Rita Plunge Swimsuit Black
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Panache Spirit Rita Plunge Swimsuit Black
Sale price $189.95
Regular price $189.95 Sale price $169.95
Sale price $189.95
Freya Freestyle UW Moulded Swimsuit Astral NavyFreya Freestyle UW Moulded Swimsuit Astral Navy
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Freya Freestyle UW Moulded Swimsuit Astral Navy
Sale price $134.95
Panache Gingham Paloma Full Cup Swimsuit Blacksg-10-12 Panache Gingham Swimsuit
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Panache Gingham Paloma Full Cup Swimsuit Black
Sale price $169.95
Regular price $164.95 Sale price $129.95
Regular price $169.95 Sale price $154.95
Panache Signature Zadie Full Cup Swimsuit BlackPanache Signature Zadie Full Cup Swimsuit Black
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Panache Signature Zadie Full Cup Swimsuit Black
Sale price $174.95
Fantasie Swimwear - Swimsuit Fantasie Ottawa Twist Front Swimsuit InkFantasie Swimwear - Swimsuit Fantasie Ottawa Twist Front Swimsuit Ink
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Fantasie Ottawa Twist Front Swimsuit Ink
Sale price $154.95
Sale price $154.95
Panache Aurora Lara Plunge Swimsuit RedPanache Aurora Lara Plunge Swimsuit Red
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Panache Aurora Lara Plunge Swimsuit Red
Regular price $189.95 Sale price $174.95
Fantasie Beach Waves Twist Front Swimsuit Bright FuchsiaFantasie Beach Waves Twist Front Swimsuit Bright Fuchsia
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Fantasie Beach Waves Twist Front Swimsuit Bright Fuchsia
Regular price $149.95 Sale price $134.95
Fantasie Swimwear - Swimsuit Fantasie Ottawa Twist Front Swimsuit BlackFantasie Swimwear - Swimsuit Fantasie Ottawa Twist Front Swimsuit Black
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Fantasie Ottawa Twist Front Swimsuit Black
Sale price $154.95
Sale price $154.95
Rosa Faia Elouise Zip Front Swimsuit Passion PinkRosa Faia Elouise Zip Front Swimsuit Passion Pink
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Rosa Faia Elouise Zip Front Swimsuit Passion Pink
Regular price $159.95 Sale price $149.95
Sale price $159.95
Panache Spirit Rita Plunge Swimsuit CobaltPanache Spirit Rita Plunge Swimsuit Cobalt
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Panache Spirit Rita Plunge Swimsuit Cobalt
Sale price $189.95
Sale price $189.95
Regular price $189.95 Sale price $169.95
Primadonna Delray Full Cup Control Swimsuit BlackPrimadonna Delray Full Cup Control Swimsuit Black
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Primadonna Delray Full Cup Control Swimsuit Black
Sale price $299.95
Panache Signature Serena Square Neck Swimsuit BlackPanache Signature Serena Square Neck Swimsuit Black
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Panache Signature Serena Square Neck Swimsuit Black
Sale price $189.95

At E cup a one-piece has to do two jobs at once: hold the bust securely and stay comfortable while wet, when fabric relaxes and any weakness in the construction shows up immediately.

What to look for at E cup

Underwired or firmly moulded cups, side support panels, and a band that fastens rather than simply stretching over the head. A suit that pulls on with no fastening rarely holds an E cup bust in place through a swim.

Styles and brands

Fantasie Swim and Panache Swim are the most consistent at E cup, with Freya Swim adding brighter prints. If you would rather buy top and bottom separately, see E cup bikini tops and the full all E cup swimwear range.