One-Pieces

All Swimwear Bikinis One-Pieces Kids Men

The designer one-piece is having a moment — and Swimwear World stocks the best of them. Sculpting maillots, plunging necklines, cutouts, surplice fronts, racerbacks, and classic scoop-necks from the brands defining contemporary swimwear.

Shop by silhouette

Plunge one-pieces for vacation glamour, one-shoulder swimsuits for sculptural lines, square-necks for clean modern lines, surplice and wrap fronts for figure flattery, cutouts and monokinis for statement looks, and classic scoop-back maillots for everyday wear.

Shop by fit

Sculpting compression-fabric one-pieces from Vitamin A and Robin Piccone, embellished and hand-finished pieces from Agua Bendita and Beach Bunny, and runway-inspired silhouettes from Devon Windsor.

Layer it up

A great one-piece doubles as a bodysuit under shorts or a skirt — shop our cover-ups and resort dresses to complete the look. Free US & Canada shipping.

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563 products
View All Plunge One-Shoulder D+ Cup Triangle Bandeau Bralette Halter High Neck High-Waist High-Leg Pushup Underwire

Sale
Oye Swimwear: Vera
Low Stock
Vera
Oye Swimwear
SKU: 330-179
$350.00 $140.00 -60%
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Oye Swimwear: Venus
Low Stock
Venus
Oye Swimwear
SKU: 330-170
$350.00 $140.00 -60%
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Oye Swimwear: Valentina
Low Stock
Valentina
Oye Swimwear
SKU: 330-177
$350.00 $140.00 -60%
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Sale
Oye Swimwear: Venus
Low Stock
Venus
Oye Swimwear
SKU: 330-171
$350.00 $140.00 -60%
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Robin Piccone: Amy High Neck One Piece
Amy High Neck One Piece
Robin Piccone
SKU: 720-1011
$182.00
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Robin Piccone: Amy High Neck One-Piece
Amy High Neck One-Piece
Robin Piccone
SKU: 720-1069
$182.00
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Robin Piccone: Amy One Piece V Neck
Amy One Piece V Neck
Robin Piccone
SKU: 720-548
$172.00
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Robin Piccone: Amy Raglan One-Piece
Amy Raglan One-Piece
Robin Piccone
SKU: 720-878
$188.00
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Robin Piccone: Amy V-Neck One-Piece
Amy V-Neck One-Piece
Robin Piccone
SKU: 720-830
$172.00
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Robin Piccone: Aubrey Bandeau One-Piece
Aubrey Bandeau One-Piece
Robin Piccone
SKU: 720-944
$180.00
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Robin Piccone: Aubrey Bandeau One-Piece
Aubrey Bandeau One-Piece
Robin Piccone
SKU: 720-998
$180.00
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Robin Piccone: Aubrey V Plunge One Piece
Aubrey V Plunge One Piece
Robin Piccone
SKU: 720-410
$188.00
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Robin Piccone: Ava Bandeau One-Piece
Ava Bandeau One-Piece
Robin Piccone
SKU: 720-716
$182.00
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Robin Piccone: Ava Bandeau One-Piece
Ava Bandeau One-Piece
Robin Piccone
SKU: 720-715
$182.00
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Robin Piccone: Ava Bandeau One-Piece
Ava Bandeau One-Piece
Robin Piccone
SKU: 720-717
$182.00
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Robin Piccone: Ava Bandeau One-Piece
Ava Bandeau One-Piece
Robin Piccone
SKU: 720-896
$182.00
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Robin Piccone: Ava Knot One-Piece
Ava Knot One-Piece
Robin Piccone
SKU: 720-1054
$182.00
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Robin Piccone: Ava Halter Plunge One-Piece
Ava Halter Plunge One-Piece
Robin Piccone
SKU: 720-999
$198.00
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Robin Piccone: Ava Knot One-Piece
Ava Knot One-Piece
Robin Piccone
SKU: 720-895
$182.00
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Robin Piccone: Ava Mio W Lace up One-Piece
Ava Mio W Lace up One-Piece
Robin Piccone
SKU: 720-791
$178.00
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Robin Piccone: Ava One Knot One-Piece
Ava One Knot One-Piece
Robin Piccone
SKU: 720-712
$182.00
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Robin Piccone: Ava Scoop Neck Mio One-Piece
Ava Scoop Neck Mio One-Piece
Robin Piccone
SKU: 720-711
$178.00
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Robin Piccone: Ava Plunge One Piece
Ava Plunge One Piece
Robin Piccone
SKU: 720-281
$178.00
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Robin Piccone: Ava Underwire Mio With Front Tie One-Piece
Ava Underwire Mio With Front Tie One-Piece
Robin Piccone
SKU: 720-1055
$178.00
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Robin Piccone: Brigitte Underwire One-Piece
Brigitte Underwire One-Piece
Robin Piccone
SKU: 720-1072
$188.00
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Robin Piccone: Charlotte Mio One-Piece
Charlotte Mio One-Piece
Robin Piccone
SKU: 720-966
$188.00
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Robin Piccone: Charlotte Bandeau One-Piece
Charlotte Bandeau One-Piece
Robin Piccone
SKU: 720-970
$186.00
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Robin Piccone: Charlotte Mio One-Piece
Charlotte Mio One-Piece
Robin Piccone
SKU: 720-965
$188.00
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Robin Piccone: Charlotte Bandeau One-Piece
Charlotte Bandeau One-Piece
Robin Piccone
SKU: 720-969
$186.00
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Robin Piccone: Emilia High Neck One-Piece
Emilia High Neck One-Piece
Robin Piccone
SKU: 720-987
$182.00
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Robin Piccone: Hailey Bandeau One-Piece
Hailey Bandeau One-Piece
Robin Piccone
SKU: 720-1017
$182.00
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Robin Piccone: Hailey Halter One-Piece
Hailey Halter One-Piece
Robin Piccone
SKU: 720-1035
$182.00
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Robin Piccone: Hailey Bandeau One-Piece
Hailey Bandeau One-Piece
Robin Piccone
SKU: 720-1034
$182.00
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Robin Piccone: Isabelle Bandeau One-Piece
Isabelle Bandeau One-Piece
Robin Piccone
SKU: 720-1029
$186.00
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Robin Piccone: Isabelle Keyhole One-Piece
Isabelle Keyhole One-Piece
Robin Piccone
SKU: 720-1030
$186.00
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Robin Piccone: Jacqui Bandeau One-Piece
Jacqui Bandeau One-Piece
Robin Piccone
SKU: 720-1051
$178.00
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Robin Piccone: Jacqui One-Piece
Jacqui One-Piece
Robin Piccone
SKU: 720-1050
$182.00
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Robin Piccone: Keely Keyhole One-Piece
Keely Keyhole One-Piece
Robin Piccone
SKU: 720-825
$166.00
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Robin Piccone: Nova Halter One-Piece
Nova Halter One-Piece
Robin Piccone
SKU: 720-992
$186.00
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Robin Piccone: Millie Plunge One-Piece
Millie Plunge One-Piece
Robin Piccone
SKU: 720-1021
$192.00
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Robin Piccone: Tierna Cut-Out One-Piece
Tierna Cut-Out One-Piece
Robin Piccone
SKU: 720-955
$182.00
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Robin Piccone: Tierna Keyhole One-Piece
Best Seller
Tierna Keyhole One-Piece
Robin Piccone
SKU: 720-810
$178.00
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Robin Piccone: Willow Keyhole One-Piece
Willow Keyhole One-Piece
Robin Piccone
SKU: 720-940
$178.00
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Sale
Malai: Lunaria One-Piece
Lunaria One-Piece
Malai
SKU: 600-2920
$169.00 $101.40 -40%
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Paramidonna: Luisa One-Piece
Luisa One-Piece
Paramidonna
SKU: 148-435
$261.00
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Paramidonna: Elle One-Piece
Elle One-Piece
Paramidonna
SKU: 148-444
$241.00
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Paramidonna: Hailey One-Piece
Hailey One-Piece
Paramidonna
SKU: 148-141
$230.00
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Paramidonna: Olivia One-Piece
Olivia One-Piece
Paramidonna
SKU: 148-092
$220.00
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Paramidonna: Sophia One-Piece
Sophia One-Piece
Paramidonna
SKU: 148-156
$235.00
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Paramidonna: Sophia One-Piece
Sophia One-Piece
Paramidonna
SKU: 148-132
$235.00
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Paramidonna: Sophia One-Piece
Sophia One-Piece
Paramidonna
SKU: 148-169
$235.00
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Paramidonna: Sophia One-Piece
Sophia One-Piece
Paramidonna
SKU: 148-068
$230.00
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Sale
Isabel Beachwear: Rebelle One Piece
Rebelle One Piece
Isabel Beachwear
SKU: 158-028
$276.00 $234.60 -15%
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Sale
Isabel Beachwear: Amalfi Luxe One Piece
Amalfi Luxe One Piece
Isabel Beachwear
SKU: 158-016
$293.00 $249.05 -15%
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Sale
::SALE
BF
Luli Fama: Open Side One Piece Bodysuit
Low Stock
Open Side One Piece Bodysuit
Luli Fama
SKU: 135-2554
$164.00 $98.40 -40%
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Beach Riot: Akira One-Piece
Akira One-Piece
Beach Riot
SKU: 275-1547
$168.00
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Luli Fama: Spiral Rings Deep V One-Piece
Spiral Rings Deep V One-Piece
Luli Fama
SKU: 135-3545
$224.00
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Luli Fama: Halter Ring Cut Out One-Piece
Halter Ring Cut Out One-Piece
Luli Fama
SKU: 135-3552
$200.00
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Luli Fama: Deep V One-Piece
Deep V One-Piece
Luli Fama
SKU: 135-3569
$202.00
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Luli Fama: Square Neck One-Piece
Square Neck One-Piece
Luli Fama
SKU: 135-3570
$234.00
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Luli Fama: Moderate One-Piece
Moderate One-Piece
Luli Fama
SKU: 135-3577
$202.00
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Luli Fama: Moderate One-Piece
Moderate One-Piece
Luli Fama
SKU: 135-3585
$196.00
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Luli Fama: Deep V One-Piece
Deep V One-Piece
Luli Fama
SKU: 135-3601
$202.00
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Luli Fama: Braided Wavy Ruched Back One-Piece
Braided Wavy Ruched Back One-Piece
Luli Fama
SKU: 135-3608
$244.00
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One-Pieces — Frequently Asked Questions

Very. One-pieces offer smoothing, support, and versatility. Plunge necklines elongate, square necks give clean modern lines, surplice and wrap fronts flatter the midsection, and cutouts add a statement without sacrificing coverage.

Many do. Robin Piccone uses compression fabrics and structured construction for a sculpting, supportive fit, and Beach Riot offers padded one-piece styles. Cup and support details are listed on each product page.

Yes — a great one-piece doubles as a bodysuit under shorts, skirts, or trousers, making it one of the most versatile pieces in a vacation wardrobe.

We carry designer one-pieces from labels including Beach Riot, Robin Piccone, Agua Bendita, Beach Bunny, Devon Windsor, and Maaji — from minimal maillots to sculpted, statement styles.