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.

342 items
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    Rip Curl One Piece Swimsuit (view 2)Rip Curl One Piece Swimsuit (view 1)Flawed Gem
    View Product: Rip Curl One Piece Swimsuit

    Rip Curl

    One Piece Swimsuit
    Size Sm
    $19.99
    64% off estimated retail
    Onia Swimsuit Top (view 2)Onia Swimsuit Top (view 1)Flawed Gem
    View Product: Onia Swimsuit Top

    Onia

    Swimsuit Top
    Size XS
    $20.99
    67% off estimated retail
    Mara Hoffman Swimsuit Top (view 2)Mara Hoffman Swimsuit Top (view 1)Flawed Gem
    View Product: Mara Hoffman Swimsuit Top

    Mara Hoffman

    Swimsuit Top
    Size Med
    $37.99
    66% off estimated retail
    Cupshe Swimsuit Bottoms (view 2)Cupshe Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Cupshe Swimsuit Bottoms

    Cupshe

    Swimsuit Bottoms
    Size Sm
    $13.99
    26% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Glyder One Piece Swimsuit (view 2)Glyder One Piece Swimsuit (view 1)Flawed Gem
    View Product: Glyder One Piece Swimsuit

    Glyder

    One Piece Swimsuit
    Size Sm
    $40.99
    56% off estimated retail
    Lands' End Swimsuit Top (view 2)Lands' End Swimsuit Top (view 1)Flawed Gem
    View Product: Lands' End Swimsuit Top

    Lands' End

    Swimsuit Top
    Size 14
    $26.99
    57% off estimated retail
    Miraclesuit Swimsuit Top (view 2)Miraclesuit Swimsuit Top (view 1)Flawed Gem
    View Product: Miraclesuit Swimsuit Top

    Miraclesuit

    Swimsuit Top
    Size XL
    $30.99
    59% off estimated retail
    Tavik Swimwear Swimsuit Bottoms (view 2)Tavik Swimwear Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Tavik Swimwear Swimsuit Bottoms

    Tavik Swimwear

    Swimsuit Bottoms
    Size Med
    $25.99
    70% off estimated retail
    Lands' End Swimsuit Top (view 2)Lands' End Swimsuit Top (view 1)Flawed Gem
    View Product: Lands' End Swimsuit Top

    Lands' End

    Swimsuit Top
    Size 6
    $23.99
    62% off estimated retail
    Unbranded Swimsuit Cover Up (view 2)Unbranded Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Unbranded Swimsuit Cover Up

    Unbranded

    Swimsuit Cover Up
    Size Med
    $15.99
    57% off estimated retail
    Desigual Swimsuit Bottoms (view 2)Desigual Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Desigual Swimsuit Bottoms

    Desigual

    Swimsuit Bottoms
    Size Sm
    $18.99
    70% off estimated retail
    Cupshe Swimsuit Bottoms (view 2)Cupshe Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Cupshe Swimsuit Bottoms

    Cupshe

    Swimsuit Bottoms
    Size Med
    $12.99
    31% off estimated retail
    Lands' End One Piece Swimsuit (view 2)Lands' End One Piece Swimsuit (view 1)Flawed Gem
    View Product: Lands' End One Piece Swimsuit

    Lands' End

    One Piece Swimsuit
    Size 14
    $19.99
    78% off estimated retail
    Shade & Shore Swimsuit Top (view 2)Shade & Shore Swimsuit Top (view 1)Flawed Gem
    View Product: Shade & Shore Swimsuit Top

    Shade & Shore

    Swimsuit Top
    Size Sm
    $13.99
    56% off estimated retail
    Aerie One Piece Swimsuit (view 2)Aerie One Piece Swimsuit (view 1)Flawed Gem
    View Product: Aerie One Piece Swimsuit

    Aerie

    One Piece Swimsuit
    Size Sm
    $16.99
    55% off estimated retail
    Cupshe Swimsuit Top (view 2)Cupshe Swimsuit Top (view 1)Flawed Gem
    View Product: Cupshe Swimsuit Top

    Cupshe

    Swimsuit Top
    Size Sm
    $10.99
    42% 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 Sm
    $18.99
    72% off estimated retail
    FP BEACH Swimsuit Cover Up (view 2)FP BEACH Swimsuit Cover Up (view 1)Flawed Gem
    View Product: FP BEACH Swimsuit Cover Up

    FP BEACH

    Swimsuit Cover Up
    Size Med
    $15.99
    71% off estimated retail
    Lauren by Ralph Lauren Swimsuit Top (view 2)Lauren by Ralph Lauren Swimsuit Top (view 1)Flawed Gem
    View Product: Lauren by Ralph Lauren Swimsuit Top
    Size Med
    $35.99
    62% off estimated retail
    Andie One Piece Swimsuit (view 2)Andie One Piece Swimsuit (view 1)Flawed Gem
    View Product: Andie One Piece Swimsuit

    Andie

    One Piece Swimsuit
    Size Lg
    $20.99
    72% off estimated retail
    Victoria's Secret Pink Swimsuit Bottoms (view 2)Victoria's Secret Pink Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Victoria's Secret Pink Swimsuit Bottoms

    Victoria's Secret Pink

    Swimsuit Bottoms
    Size 2
    $9.99
    60% off estimated retail
    Mirella One Piece Swimsuit (view 2)Mirella One Piece Swimsuit (view 1)Flawed Gem
    View Product: Mirella One Piece Swimsuit

    Mirella

    One Piece Swimsuit
    Size XS
    $13.99
    70% off estimated retail
    Athleta One Piece Swimsuit (view 2)Athleta One Piece Swimsuit (view 1)Flawed Gem
    View Product: Athleta One Piece Swimsuit

    Athleta

    One Piece Swimsuit
    Size Sm
    $51.99
    46% off estimated retail
    Tommy Bahama Swimsuit Cover Up (view 2)Tommy Bahama Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Tommy Bahama Swimsuit Cover Up

    Tommy Bahama

    Swimsuit Cover Up
    Size XS
    $19.99
    64% off estimated retail
    Bleu Rod Beattie Swimsuit Bottoms (view 2)Bleu Rod Beattie Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Bleu Rod Beattie Swimsuit Bottoms

    Bleu Rod Beattie

    Swimsuit Bottoms
    Size XL
    $20.99
    72% off estimated retail
    Fabletics One Piece Swimsuit (view 2)Fabletics One Piece Swimsuit (view 1)Flawed Gem
    View Product: Fabletics One Piece Swimsuit

    Fabletics

    One Piece Swimsuit
    Size Med
    $19.99
    58% off estimated retail
    ABS Allen Schwartz Swimsuit Bottoms (view 2)ABS Allen Schwartz Swimsuit Bottoms (view 1)Flawed Gem
    View Product: ABS Allen Schwartz Swimsuit Bottoms

    ABS Allen Schwartz

    Swimsuit Bottoms
    Size Med
    $14.99
    80% off estimated retail
    Lands' End Swimsuit Top (view 2)Lands' End Swimsuit Top (view 1)Flawed Gem
    View Product: Lands' End Swimsuit Top

    Lands' End

    Swimsuit Top
    Size XL
    $23.99
    62% off estimated retail
    Boden Swimsuit Top (view 2)Boden Swimsuit Top (view 1)Flawed Gem
    View Product: Boden Swimsuit Top

    Boden

    Swimsuit Top
    Size 12
    $19.99
    44% off estimated retail
    Victoria's Secret Swimsuit Cover Up (view 2)Victoria's Secret Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Victoria's Secret Swimsuit Cover Up

    Victoria's Secret

    Swimsuit Cover Up
    Size Med
    $19.99
    68% off estimated retail
    Solid & Striped Swimsuit Top (view 2)Solid & Striped Swimsuit Top (view 1)Flawed Gem
    View Product: Solid & Striped Swimsuit Top

    Solid & Striped

    Swimsuit Top
    Size XS
    $37.99
    66% off estimated retail
    Fabletics Swimsuit Bottoms (view 2)Fabletics Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Fabletics Swimsuit Bottoms

    Fabletics

    Swimsuit Bottoms
    Size 12
    $12.99
    59% off estimated retail
    Victoria's Secret Swimsuit Top (view 2)Victoria's Secret Swimsuit Top (view 1)Flawed Gem
    View Product: Victoria's Secret Swimsuit Top

    Victoria's Secret

    Swimsuit Top
    Size Sm
    $11.99
    62% off estimated retail
    ASOS Swimsuit Cover Up (view 2)ASOS Swimsuit Cover Up (view 1)Flawed Gem
    View Product: ASOS Swimsuit Cover Up

    ASOS

    Swimsuit Cover Up
    Size 6
    $19.99
    58% off estimated retail
    Speedo One Piece Swimsuit (view 2)Speedo One Piece Swimsuit (view 1)Flawed Gem
    View Product: Speedo One Piece Swimsuit

    Speedo

    One Piece Swimsuit
    Size 12
    $12.99
    48% off estimated retail
    Swimsuits for all Swimsuit Top (view 2)Swimsuits for all Swimsuit Top (view 1)Flawed Gem
    View Product: Swimsuits for all Swimsuit Top

    Swimsuits for all

    Swimsuit Top
    Size 24 Plus
    $15.99
    57% off estimated retail
    Trina Turk One Piece Swimsuit (view 2)Trina Turk One Piece Swimsuit (view 1)Flawed Gem
    View Product: Trina Turk One Piece Swimsuit

    Trina Turk

    One Piece Swimsuit
    Size 8
    $49.99
    70% off estimated retail
    Roots One Piece Swimsuit (view 2)Roots One Piece Swimsuit (view 1)Flawed Gem
    View Product: Roots One Piece Swimsuit

    Roots

    One Piece Swimsuit
    Size 16
    $11.99
    36% off estimated retail
    Lularoe Swimsuit Cover Up (view 2)Lularoe Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Lularoe Swimsuit Cover Up

    Lularoe

    Swimsuit Cover Up
    Size Med
    $29.99
    53% off estimated retail
    Victoria's Secret Swimsuit Bottoms (view 2)Victoria's Secret Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Victoria's Secret Swimsuit Bottoms

    Victoria's Secret

    Swimsuit Bottoms
    Size Sm
    $11.99
    62% off estimated retail
    Torrid One Piece Swimsuit (view 2)Torrid One Piece Swimsuit (view 1)Flawed Gem
    View Product: Torrid One Piece Swimsuit

    Torrid

    One Piece Swimsuit
    Size 2X Plus
    $17.99
    64% off estimated retail
    Nanette Lepore Swimsuit Top (view 2)Nanette Lepore Swimsuit Top (view 1)Flawed Gem
    View Product: Nanette Lepore Swimsuit Top

    Nanette Lepore

    Swimsuit Top
    Size Sm
    $29.99
    62% off estimated retail
    Lululemon Athletica Swimsuit Top (view 2)Lululemon Athletica Swimsuit Top (view 1)
    View Product: Lululemon Athletica Swimsuit Top
    Size Sm
    $33.99
    56% off estimated retail
    Mara Hoffman One Piece Swimsuit (view 2)Mara Hoffman One Piece Swimsuit (view 1)Flawed Gem
    View Product: Mara Hoffman One Piece Swimsuit

    Mara Hoffman

    One Piece Swimsuit
    Size Med
    $34.99
    86% off estimated retail
    Maaji Swimsuit Bottoms (view 2)Maaji Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Maaji Swimsuit Bottoms

    Maaji

    Swimsuit Bottoms
    Size Med
    $22.99
    74% off estimated retail
    Victoria's Secret Swimsuit Bottoms (view 2)Victoria's Secret Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Victoria's Secret Swimsuit Bottoms

    Victoria's Secret

    Swimsuit Bottoms
    Size XL
    $13.99
    56% off estimated retail
    Victoria's Secret Swimsuit Bottoms (view 2)Victoria's Secret Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Victoria's Secret Swimsuit Bottoms

    Victoria's Secret

    Swimsuit Bottoms
    Size Med
    $11.99
    62% off estimated retail
    Athleta Swimsuit Top (view 2)Athleta Swimsuit Top (view 1)Flawed Gem
    View Product: Athleta Swimsuit Top

    Athleta

    Swimsuit Top
    Size XL
    $22.99
    61% off estimated retail
    Fresh Produce Swimsuit Cover Up (view 2)Fresh Produce Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Fresh Produce Swimsuit Cover Up

    Fresh Produce

    Swimsuit Cover Up
    Size Lg
    $14.99
    73% off estimated retail
    Athleta Swimsuit Top (view 2)Athleta Swimsuit Top (view 1)Flawed Gem
    View Product: Athleta Swimsuit Top

    Athleta

    Swimsuit Top
    Size Med
    $25.99
    55% off estimated retail
    Free People Swimsuit Cover Up (view 2)Free People Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Free People Swimsuit Cover Up

    Free People

    Swimsuit Cover Up
    Size Sm
    $25.99
    79% off estimated retail
    Lands' End Rash Guard (view 2)Lands' End Rash Guard (view 1)Flawed Gem
    View Product: Lands' End Rash Guard

    Lands' End

    Rash Guard
    Size 14
    $19.99
    78% 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 1X Plus
    $25.99
    80% off estimated retail
    Lauren by Ralph Lauren Swimsuit Top (view 2)Lauren by Ralph Lauren Swimsuit Top (view 1)Flawed Gem
    View Product: Lauren by Ralph Lauren Swimsuit Top
    Size Med
    $21.99
    68% off estimated retail
    Onia Swimsuit Top (view 2)Onia Swimsuit Top (view 1)Flawed Gem
    View Product: Onia Swimsuit Top

    Onia

    Swimsuit Top
    Size Sm
    $14.99
    76% off estimated retail
    Polo by Ralph Lauren Swimsuit Top (view 2)Polo by Ralph Lauren Swimsuit Top (view 1)Flawed Gem
    View Product: Polo by Ralph Lauren Swimsuit Top
    Size Sm
    $16.99
    73% off estimated retail
    Nautica Swimsuit Bottoms (view 2)Nautica Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Nautica Swimsuit Bottoms

    Nautica

    Swimsuit Bottoms
    Size 14
    $12.99
    59% off estimated retail
    Tommy Hilfiger One Piece Swimsuit (view 2)Tommy Hilfiger One Piece Swimsuit (view 1)Flawed Gem
    View Product: Tommy Hilfiger One Piece Swimsuit

    Tommy Hilfiger

    One Piece Swimsuit
    Size 4
    $26.99
    70% off estimated retail
    Aerie Swimsuit Top (view 2)Aerie Swimsuit Top (view 1)Flawed Gem
    View Product: Aerie Swimsuit Top

    Aerie

    Swimsuit Top
    Size Med
    $13.99
    44% off estimated retail
    Hollister Swimsuit Top (view 2)Hollister Swimsuit Top (view 1)Flawed Gem
    View Product: Hollister Swimsuit Top

    Hollister

    Swimsuit Top
    Size Lg
    $16.99
    51% off estimated retail
    Athleta Swimsuit Bottoms (view 2)Athleta Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Athleta Swimsuit Bottoms

    Athleta

    Swimsuit Bottoms
    Size Med
    $22.99
    61% off estimated retail
    Lands' End Swimsuit Cover Up (view 2)Lands' End Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Lands' End Swimsuit Cover Up

    Lands' End

    Swimsuit Cover Up
    Size XS
    $18.99
    85% 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
    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 Med
    $21.99
    68% off estimated retail
    Trina Turk Swimsuit Cover Up (view 2)Trina Turk Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Trina Turk Swimsuit Cover Up

    Trina Turk

    Swimsuit Cover Up
    Size One size
    $30.99
    79% off estimated retail
    J.Crew Swimsuit Bottoms (view 2)J.Crew Swimsuit Bottoms (view 1)Flawed Gem
    View Product: J.Crew Swimsuit Bottoms

    J.Crew

    Swimsuit Bottoms
    Size Lg
    $17.99
    67% off estimated retail
    Miraclesuit One Piece Swimsuit (view 2)Miraclesuit One Piece Swimsuit (view 1)Flawed Gem
    View Product: Miraclesuit One Piece Swimsuit

    Miraclesuit

    One Piece Swimsuit
    Size Lg
    $36.99
    67% off estimated retail
    Solitaire Swim Swimsuit Cover Up (view 2)Solitaire Swim Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Solitaire Swim Swimsuit Cover Up

    Solitaire Swim

    Swimsuit Cover Up
    Size Sm
    $17.99
    68% off estimated retail
    Avenue Swimsuit Top (view 2)Avenue Swimsuit Top (view 1)Flawed Gem
    View Product: Avenue Swimsuit Top

    Avenue

    Swimsuit Top
    Size 32 Plus
    $14.99
    53% off estimated retail
    ASOS One Piece Swimsuit (view 2)ASOS One Piece Swimsuit (view 1)Flawed Gem
    View Product: ASOS One Piece Swimsuit

    ASOS

    One Piece Swimsuit
    Size 10 uk
    $19.99
    58% off estimated retail
    San Lorenzo One Piece Swimsuit (view 2)San Lorenzo One Piece Swimsuit (view 1)Flawed Gem
    View Product: San Lorenzo One Piece Swimsuit

    San Lorenzo

    One Piece Swimsuit
    Size XL
    $36.99
    75% off estimated retail
    Kenneth Cole REACTION Swimsuit Top (view 2)Kenneth Cole REACTION Swimsuit Top (view 1)Flawed Gem
    View Product: Kenneth Cole REACTION Swimsuit Top
    Size Med
    $14.99
    60% off estimated retail
    Victoria's Secret Swimsuit Top (view 2)Victoria's Secret Swimsuit Top (view 1)Flawed Gem
    View Product: Victoria's Secret Swimsuit Top

    Victoria's Secret

    Swimsuit Top
    Size Sm
    $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 Lg
    $17.99
    74% off estimated retail
    Athleta One Piece Swimsuit (view 2)Athleta One Piece Swimsuit (view 1)Flawed Gem
    View Product: Athleta One Piece Swimsuit

    Athleta

    One Piece Swimsuit
    Size XS
    $18.99
    72% off estimated retail
    Lands' End Swimsuit Cover Up (view 2)Lands' End Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Lands' End Swimsuit Cover Up

    Lands' End

    Swimsuit Cover Up
    Size 14
    $14.99
    84% off estimated retail
    ViX by Paula Hermanny Swimsuit Top (view 2)ViX by Paula Hermanny Swimsuit Top (view 1)Flawed Gem
    View Product: ViX by Paula Hermanny Swimsuit Top
    Size Med
    $41.99
    73% off estimated retail
    Zimmermann Swimsuit Bottoms (view 2)Zimmermann Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Zimmermann Swimsuit Bottoms

    Zimmermann

    Swimsuit Bottoms
    Size 6
    $51.99
    69% off estimated retail
    Billabong Swimsuit Bottoms (view 2)Billabong Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Billabong Swimsuit Bottoms

    Billabong

    Swimsuit Bottoms
    Size Lg
    $9.99
    60% 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 Sm
    $25.99
    62% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)Flawed Gem
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size XS
    $14.99
    40% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size Sm
    $14.99
    40% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)Flawed Gem
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size Sm
    $19.99
    20% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)Flawed Gem
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size XS
    $14.99
    40% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)Flawed Gem
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size Sm
    $14.99
    40% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size One size
    $14.99
    40% off estimated retail
    Kate Spade New York Swimsuit Bottoms (view 2)Kate Spade New York Swimsuit Bottoms (view 1)Flawed Gem
    View Product: Kate Spade New York Swimsuit Bottoms

    Kate Spade New York

    Swimsuit Bottoms
    Size Sm
    $24.99
    65% off estimated retail

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