Shop Women's Swimwear at up to 90% off estimated retail! thredUP has a huge selection of gently used women's swimwear. Find bikinis, one-pieces, board shorts and cover ups from brands like Seafolly, Aqua or Speedo at thredUP.

1,194 items
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    Summersalt Swimsuit Bottoms (view 2)Summersalt Swimsuit Bottoms (view 1)
    View Product: Summersalt Swimsuit Bottoms

    Summersalt

    Swimsuit Bottoms
    Size 2
    $24.99
    60% off estimated retail
    Athleta One Piece Swimsuit (view 2)Athleta One Piece Swimsuit (view 1)
    View Product: Athleta One Piece Swimsuit

    Athleta

    One Piece Swimsuit
    Size XS
    $50.99
    47% off estimated retail
    Athleta Swimsuit Top (view 2)Athleta Swimsuit Top (view 1)
    View Product: Athleta Swimsuit Top

    Athleta

    Swimsuit Top
    Size XS
    $26.99
    54% off estimated retail
    Cupshe Swimsuit Bottoms (view 2)Cupshe Swimsuit Bottoms (view 1)New With Tags
    View Product: Cupshe Swimsuit Bottoms

    Cupshe

    Swimsuit Bottoms
    Size XS
    $14.99
    21% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Cupshe Swimsuit Top (view 2)Cupshe Swimsuit Top (view 1)
    View Product: Cupshe Swimsuit Top

    Cupshe

    Swimsuit Top
    Size XS
    $15.99
    15% off estimated retail
    J.Crew Swimsuit Top (view 2)J.Crew Swimsuit Top (view 1)
    View Product: J.Crew Swimsuit Top

    J.Crew

    Swimsuit Top
    Size XS
    $25.99
    62% off estimated retail
    American Eagle Outfitters Swimsuit Cover Up (view 2)American Eagle Outfitters Swimsuit Cover Up (view 1)
    View Product: American Eagle Outfitters Swimsuit Cover Up

    American Eagle Outfitters

    Swimsuit Cover Up
    Size XS
    $25.99
    52% off estimated retail
    Lilly Pulitzer Swimsuit Top (view 2)Lilly Pulitzer Swimsuit Top (view 1)
    View Product: Lilly Pulitzer Swimsuit Top

    Lilly Pulitzer

    Swimsuit Top
    Size XS
    $30.99
    59% off estimated retail
    Onia Swimsuit Bottoms (view 2)Onia Swimsuit Bottoms (view 1)
    View Product: Onia Swimsuit Bottoms

    Onia

    Swimsuit Bottoms
    Size XS
    $17.99
    71% off estimated retail
    J.Crew One Piece Swimsuit (view 2)J.Crew One Piece Swimsuit (view 1)New With Tags
    View Product: J.Crew One Piece Swimsuit

    J.Crew

    One Piece Swimsuit
    Size 2
    $38.99
    65% off estimated retail
    Assorted Brands Swimsuit Top (view 2)Assorted Brands Swimsuit Top (view 1)New With Tags
    View Product: Assorted Brands Swimsuit Top

    Assorted Brands

    Swimsuit Top
    Size XS
    $14.99
    40% off estimated retail
    Assorted Brands Swimsuit Top (view 2)Assorted Brands Swimsuit Top (view 1)
    View Product: Assorted Brands Swimsuit Top

    Assorted Brands

    Swimsuit Top
    Size XS
    $11.99
    52% off estimated retail
    Kona Sol Two Piece Swimsuit (view 2)Kona Sol Two Piece Swimsuit (view 1)
    View Product: Kona Sol Two Piece Swimsuit

    Kona Sol

    Two Piece Swimsuit
    Size 2
    $22.99
    39% off estimated retail
    Unbranded Rash Guard (view 2)Unbranded Rash Guard (view 1)
    View Product: Unbranded Rash Guard

    Unbranded

    Rash Guard
    Size 2
    $20.99
    44% off estimated retail
    Palmacea Swimsuit Cover Up (view 2)Palmacea Swimsuit Cover Up (view 1)
    View Product: Palmacea Swimsuit Cover Up

    Palmacea

    Swimsuit Cover Up
    Size XS
    $36.99
    67% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size XS
    $16.99
    55% off estimated retail
    J.Crew Rash Guard (view 2)J.Crew Rash Guard (view 1)
    View Product: J.Crew Rash Guard

    J.Crew

    Rash Guard
    Size XS
    $27.99
    68% off estimated retail
    Xhilaration Swimsuit Top (view 2)Xhilaration Swimsuit Top (view 1)
    View Product: Xhilaration Swimsuit Top

    Xhilaration

    Swimsuit Top
    Size XS
    $10.99
    15% off estimated retail
    Xhilaration Swimsuit Bottoms (view 2)Xhilaration Swimsuit Bottoms (view 1)
    View Product: Xhilaration Swimsuit Bottoms

    Xhilaration

    Swimsuit Bottoms
    Size XS
    $6.99
    46% off estimated retail
    Summersalt Swimsuit Top (view 2)Summersalt Swimsuit Top (view 1)New With Tags
    View Product: Summersalt Swimsuit Top

    Summersalt

    Swimsuit Top
    Size 2
    $25.99
    59% off estimated retail
    L Space Swimsuit Bottoms (view 2)L Space Swimsuit Bottoms (view 1)New With Tags
    View Product: L Space Swimsuit Bottoms

    L Space

    Swimsuit Bottoms
    Size XS
    $18.99
    70% off estimated retail
    Cupshe Swimsuit Top (view 2)Cupshe Swimsuit Top (view 1)
    View Product: Cupshe Swimsuit Top

    Cupshe

    Swimsuit Top
    Size XS
    $10.99
    42% off estimated retail
    Assorted Brands Swimsuit Top (view 2)Assorted Brands Swimsuit Top (view 1)
    View Product: Assorted Brands Swimsuit Top

    Assorted Brands

    Swimsuit Top
    Size XS
    $10.99
    56% off estimated retail
    Xhilaration Swimsuit Bottoms (view 2)Xhilaration Swimsuit Bottoms (view 1)
    View Product: Xhilaration Swimsuit Bottoms

    Xhilaration

    Swimsuit Bottoms
    Size XS
    $6.99
    46% off estimated retail
    Adore Me Swimsuit Top (view 2)Adore Me Swimsuit Top (view 1)
    View Product: Adore Me Swimsuit Top

    Adore Me

    Swimsuit Top
    Size XS
    $11.99
    62% off estimated retail
    Summersalt One Piece Swimsuit (view 2)Summersalt One Piece Swimsuit (view 1)
    View Product: Summersalt One Piece Swimsuit

    Summersalt

    One Piece Swimsuit
    Size 2
    $43.99
    53% off estimated retail
    Xhilaration Swimsuit Bottoms (view 2)Xhilaration Swimsuit Bottoms (view 1)
    View Product: Xhilaration Swimsuit Bottoms

    Xhilaration

    Swimsuit Bottoms
    Size XS
    $6.99
    46% off estimated retail
    Xhilaration Swimsuit Bottoms (view 2)Xhilaration Swimsuit Bottoms (view 1)
    View Product: Xhilaration Swimsuit Bottoms

    Xhilaration

    Swimsuit Bottoms
    Size XS
    $6.99
    46% off estimated retail
    Victoria's Secret Swimsuit Top (view 2)Victoria's Secret Swimsuit Top (view 1)
    View Product: Victoria's Secret Swimsuit Top

    Victoria's Secret

    Swimsuit Top
    Size XS
    $13.99
    56% off estimated retail
    Summersalt Swimsuit Top (view 2)Summersalt Swimsuit Top (view 1)
    View Product: Summersalt Swimsuit Top

    Summersalt

    Swimsuit Top
    Size 2
    $24.99
    60% off estimated retail
    Summersalt Swimsuit Bottoms (view 2)Summersalt Swimsuit Bottoms (view 1)
    View Product: Summersalt Swimsuit Bottoms

    Summersalt

    Swimsuit Bottoms
    Size 2
    $24.99
    60% off estimated retail
    Summersalt Swimsuit Bottoms (view 2)Summersalt Swimsuit Bottoms (view 1)
    View Product: Summersalt Swimsuit Bottoms

    Summersalt

    Swimsuit Bottoms
    Size 2
    $23.99
    62% off estimated retail
    Lands' End Canvas Swimsuit Top (view 2)Lands' End Canvas Swimsuit Top (view 1)
    View Product: Lands' End Canvas Swimsuit Top

    Lands' End Canvas

    Swimsuit Top
    Size XS
    $15.99
    57% off estimated retail
    Tibi Swimsuit Top (view 2)Tibi Swimsuit Top (view 1)New With Tags
    View Product: Tibi Swimsuit Top

    Tibi

    Swimsuit Top
    Size XS
    $24.99
    75% off estimated retail
    Speedo One Piece Swimsuit (view 2)Speedo One Piece Swimsuit (view 1)New With Tags
    View Product: Speedo One Piece Swimsuit

    Speedo

    One Piece Swimsuit
    Size XXS
    $24.99
    37% off estimated retail
    Victoria's Secret Swimsuit Bottoms (view 2)Victoria's Secret Swimsuit Bottoms (view 1)
    View Product: Victoria's Secret Swimsuit Bottoms

    Victoria's Secret

    Swimsuit Bottoms
    Size XS
    $14.99
    53% off estimated retail
    Ralph Lauren Swimsuit Bottoms (view 2)Ralph Lauren Swimsuit Bottoms (view 1)
    View Product: Ralph Lauren Swimsuit Bottoms

    Ralph Lauren

    Swimsuit Bottoms
    Size XS
    $16.99
    73% off estimated retail
    Dolfin One Piece Swimsuit (view 2)Dolfin One Piece Swimsuit (view 1)
    View Product: Dolfin One Piece Swimsuit

    Dolfin

    One Piece Swimsuit
    Size XXS
    $21.99
    42% off estimated retail
    Fabletics Swimsuit Bottoms (view 2)Fabletics Swimsuit Bottoms (view 1)
    View Product: Fabletics Swimsuit Bottoms

    Fabletics

    Swimsuit Bottoms
    Size XS
    $11.99
    62% off estimated retail
    Gap Swimsuit Bottoms (view 2)Gap Swimsuit Bottoms (view 1)
    View Product: Gap Swimsuit Bottoms

    Gap

    Swimsuit Bottoms
    Size XS
    $27.99
    62% off estimated retail
    Gap Swimsuit Top (view 2)Gap Swimsuit Top (view 1)New With Tags
    View Product: Gap Swimsuit Top

    Gap

    Swimsuit Top
    Size XS
    $26.99
    45% off estimated retail
    FIGLEAVES One Piece Swimsuit (view 2)FIGLEAVES One Piece Swimsuit (view 1)
    View Product: FIGLEAVES One Piece Swimsuit

    FIGLEAVES

    One Piece Swimsuit
    Size XS
    $17.99
    52% off estimated retail
    J.Crew Swimsuit Top (view 2)J.Crew Swimsuit Top (view 1)
    View Product: J.Crew Swimsuit Top

    J.Crew

    Swimsuit Top
    Size XXS
    $22.99
    67% off estimated retail
    Draper James One Piece Swimsuit (view 2)Draper James One Piece Swimsuit (view 1)
    View Product: Draper James One Piece Swimsuit

    Draper James

    One Piece Swimsuit
    Size XS
    $42.99
    67% off estimated retail
    Ann Taylor LOFT Swimsuit Cover Up (view 2)Ann Taylor LOFT Swimsuit Cover Up (view 1)
    View Product: Ann Taylor LOFT Swimsuit Cover Up

    Ann Taylor LOFT

    Swimsuit Cover Up
    Size XS
    $18.99
    68% off estimated retail
    Fabletics Swimsuit Top (view 2)Fabletics Swimsuit Top (view 1)
    View Product: Fabletics Swimsuit Top

    Fabletics

    Swimsuit Top
    Size XS
    $15.99
    50% off estimated retail
    Carve Designs Swimsuit Bottoms (view 2)Carve Designs Swimsuit Bottoms (view 1)
    View Product: Carve Designs Swimsuit Bottoms

    Carve Designs

    Swimsuit Bottoms
    Size XS
    $12.99
    59% off estimated retail
    J.Crew Swimsuit Top (view 2)J.Crew Swimsuit Top (view 1)
    View Product: J.Crew Swimsuit Top

    J.Crew

    Swimsuit Top
    Size XS
    $25.99
    62% off estimated retail
    Triangl Swimsuit Top (view 2)Triangl Swimsuit Top (view 1)
    View Product: Triangl Swimsuit Top

    Triangl

    Swimsuit Top
    Size XXS
    $18.99
    70% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)New With Tags
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size XS
    $16.99
    55% off estimated retail
    Malibu Skye Swimsuit Bottoms (view 2)Malibu Skye Swimsuit Bottoms (view 1)
    View Product: Malibu Skye Swimsuit Bottoms

    Malibu Skye

    Swimsuit Bottoms
    Size 0
    $15.99
    36% off estimated retail
    J.Crew Factory Store One Piece Swimsuit (view 2)J.Crew Factory Store One Piece Swimsuit (view 1)
    View Product: J.Crew Factory Store One Piece Swimsuit

    J.Crew Factory Store

    One Piece Swimsuit
    Size XS
    $27.99
    59% off estimated retail
    Kona Sol Swimsuit Bottoms (view 2)Kona Sol Swimsuit Bottoms (view 1)
    View Product: Kona Sol Swimsuit Bottoms

    Kona Sol

    Swimsuit Bottoms
    Size XS
    $17.99
    28% off estimated retail
    Summersalt Swimsuit Top (view 2)Summersalt Swimsuit Top (view 1)Flawed Gem
    View Product: Summersalt Swimsuit Top

    Summersalt

    Swimsuit Top
    Size 2
    $22.99
    64% off estimated retail
    Lands' End One Piece Swimsuit (view 2)Lands' End One Piece Swimsuit (view 1)Rare Find
    View Product: Lands' End One Piece Swimsuit

    Lands' End

    One Piece Swimsuit
    Size 0
    $27.99
    70% off estimated retail
    Envya Swimwear Swimsuit Top (view 2)Envya Swimwear Swimsuit Top (view 1)
    View Product: Envya Swimwear Swimsuit Top

    Envya Swimwear

    Swimsuit Top
    Size XS
    $13.99
    63% off estimated retail
    Assorted Brands Swimsuit Bottoms (view 2)Assorted Brands Swimsuit Bottoms (view 1)
    View Product: Assorted Brands Swimsuit Bottoms

    Assorted Brands

    Swimsuit Bottoms
    Size XS
    $14.99
    40% off estimated retail
    J.Crew Swimsuit Bottoms (view 2)J.Crew Swimsuit Bottoms (view 1)
    View Product: J.Crew Swimsuit Bottoms

    J.Crew

    Swimsuit Bottoms
    Size XS
    $17.99
    67% off estimated retail
    Minnow One Piece Swimsuit (view 2)Minnow One Piece Swimsuit (view 1)
    View Product: Minnow One Piece Swimsuit

    Minnow

    One Piece Swimsuit
    Size XS
    $68.99
    63% off estimated retail
    Athleta Swimsuit Bottoms (view 2)Athleta Swimsuit Bottoms (view 1)
    View Product: Athleta Swimsuit Bottoms

    Athleta

    Swimsuit Bottoms
    Size XS
    $23.99
    59% off estimated retail
    Cider One Piece Swimsuit (view 2)Cider One Piece Swimsuit (view 1)
    View Product: Cider One Piece Swimsuit

    Cider

    One Piece Swimsuit
    Size XXS
    $18.99
    50% off estimated retail
    Lilly Pulitzer Swimsuit Top (view 2)Lilly Pulitzer Swimsuit Top (view 1)
    View Product: Lilly Pulitzer Swimsuit Top

    Lilly Pulitzer

    Swimsuit Top
    Size XS
    $28.99
    61% off estimated retail
    J.Crew Swimsuit Bottoms (view 2)J.Crew Swimsuit Bottoms (view 1)New With Tags
    View Product: J.Crew Swimsuit Bottoms

    J.Crew

    Swimsuit Bottoms
    Size XXS
    $18.99
    65% off estimated retail
    J.Crew Swimsuit Top (view 2)J.Crew Swimsuit Top (view 1)New With Tags
    View Product: J.Crew Swimsuit Top

    J.Crew

    Swimsuit Top
    Size XS
    $24.99
    64% off estimated retail
    Athleta Swimsuit Bottoms (view 2)Athleta Swimsuit Bottoms (view 1)
    View Product: Athleta Swimsuit Bottoms

    Athleta

    Swimsuit Bottoms
    Size XS
    $23.99
    59% off estimated retail
    Lucky Brand Swimsuit Cover Up (view 2)Lucky Brand Swimsuit Cover Up (view 1)
    View Product: Lucky Brand Swimsuit Cover Up

    Lucky Brand

    Swimsuit Cover Up
    Size XS
    $30.99
    73% off estimated retail
    BCBGeneration Swimsuit Top (view 2)BCBGeneration Swimsuit Top (view 1)
    View Product: BCBGeneration Swimsuit Top

    BCBGeneration

    Swimsuit Top
    Size XS
    $13.99
    72% off estimated retail
    J.Crew Swimsuit Top (view 2)J.Crew Swimsuit Top (view 1)New With Tags
    View Product: J.Crew Swimsuit Top

    J.Crew

    Swimsuit Top
    Size XS
    $21.99
    68% off estimated retail
    Tori Richard Board Shorts (view 2)Tori Richard Board Shorts (view 1)
    View Product: Tori Richard Board Shorts

    Tori Richard

    Board Shorts
    Size 0
    $14.99
    70% off estimated retail
    Nanette Lepore Swimsuit Top (view 2)Nanette Lepore Swimsuit Top (view 1)
    View Product: Nanette Lepore Swimsuit Top

    Nanette Lepore

    Swimsuit Top
    Size XS
    $18.99
    76% off estimated retail
    Athleta Swimsuit Top (view 2)Athleta Swimsuit Top (view 1)
    View Product: Athleta Swimsuit Top

    Athleta

    Swimsuit Top
    Size XS
    $22.99
    61% off estimated retail
    Victoria's Secret Swimsuit Top (view 2)Victoria's Secret Swimsuit Top (view 1)
    View Product: Victoria's Secret Swimsuit Top

    Victoria's Secret

    Swimsuit Top
    Size XS
    $14.99
    53% off estimated retail
    TYR Swimsuit Bottoms (view 2)TYR Swimsuit Bottoms (view 1)
    View Product: TYR Swimsuit Bottoms

    TYR

    Swimsuit Bottoms
    Size 0
    $14.99
    60% off estimated retail
    Lauren by Ralph Lauren One Piece Swimsuit (view 2)Lauren by Ralph Lauren One Piece Swimsuit (view 1)Flawed Gem
    View Product: Lauren by Ralph Lauren One Piece Swimsuit

    Lauren by Ralph Lauren

    One Piece Swimsuit
    Size XXS
    $55.99
    47% off estimated retail
    L Space Swimsuit Top (view 2)L Space Swimsuit Top (view 1)New With Tags
    View Product: L Space Swimsuit Top

    L Space

    Swimsuit Top
    Size XS
    $65.99
    40% off estimated retail
    Dippin Daisy's Swimwear Swimsuit Top (view 2)Dippin Daisy's Swimwear Swimsuit Top (view 1)New With Tags
    View Product: Dippin Daisy's Swimwear Swimsuit Top
    Size XS
    $17.99
    52% off estimated retail
    Gap Body Swimsuit Bottoms (view 2)Gap Body Swimsuit Bottoms (view 1)
    View Product: Gap Body Swimsuit Bottoms

    Gap Body

    Swimsuit Bottoms
    Size XS
    $10.99
    56% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size XS
    $12.99
    48% off estimated retail
    Victoria's Secret Swimsuit Bottoms (view 2)Victoria's Secret Swimsuit Bottoms (view 1)
    View Product: Victoria's Secret Swimsuit Bottoms

    Victoria's Secret

    Swimsuit Bottoms
    Size XS
    $10.99
    65% off estimated retail
    J.Crew Swimsuit Top (view 2)J.Crew Swimsuit Top (view 1)Flawed Gem
    View Product: J.Crew Swimsuit Top

    J.Crew

    Swimsuit Top
    Size XXS
    $17.99
    74% off estimated retail
    Vitamin A Swimsuit Bottoms (view 2)Vitamin A Swimsuit Bottoms (view 1)
    View Product: Vitamin A Swimsuit Bottoms

    Vitamin A

    Swimsuit Bottoms
    Size XS
    $30.99
    73% off estimated retail
    Anne Cole Swimsuit Top (view 2)Anne Cole Swimsuit Top (view 1)
    View Product: Anne Cole Swimsuit Top

    Anne Cole

    Swimsuit Top
    Size XS
    $21.99
    56% off estimated retail
    Anne Cole Swimsuit Top (view 2)Anne Cole Swimsuit Top (view 1)
    View Product: Anne Cole Swimsuit Top

    Anne Cole

    Swimsuit Top
    Size XS
    $21.99
    56% off estimated retail
    Khassani Swimsuit Top (view 2)Khassani Swimsuit Top (view 1)
    View Product: Khassani Swimsuit Top

    Khassani

    Swimsuit Top
    Size XS
    $27.99
    45% off estimated retail
    J.Crew One Piece Swimsuit (view 2)J.Crew One Piece Swimsuit (view 1)
    View Product: J.Crew One Piece Swimsuit

    J.Crew

    One Piece Swimsuit
    Size XS
    $31.99
    75% off estimated retail

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