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.

1,150 items
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    Topshop Swimsuit Bottoms (view 2)Topshop Swimsuit Bottoms (view 1)
    View Product: Topshop Swimsuit Bottoms

    Topshop

    Swimsuit Bottoms
    Size 8
    $7.99
    73% off estimated retail
    Zaful Swimsuit Top (view 2)Zaful Swimsuit Top (view 1)New With Tags
    View Product: Zaful Swimsuit Top

    Zaful

    Swimsuit Top
    Size Sm
    $12.99
    48% off estimated retail
    Uncommon Sense Swimsuit Top (view 2)Uncommon Sense Swimsuit Top (view 1)
    View Product: Uncommon Sense Swimsuit Top

    Uncommon Sense

    Swimsuit Top
    Size Sm
    $18.99
    62% off estimated retail
    Assorted Brands One Piece Swimsuit (view 2)Assorted Brands One Piece Swimsuit (view 1)
    View Product: Assorted Brands One Piece Swimsuit

    Assorted Brands

    One Piece Swimsuit
    Size Sm
    $18.99
    50% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Cove Board Shorts (view 2)Cove Board Shorts (view 1)
    View Product: Cove Board Shorts

    Cove

    Board Shorts
    Size Sm
    $26.99
    64% off estimated retail
    Xhilaration Swimsuit Top (view 2)Xhilaration Swimsuit Top (view 1)
    View Product: Xhilaration Swimsuit Top

    Xhilaration

    Swimsuit Top
    Size XS
    $6.99
    46% 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 Sm
    $26.99
    76% off estimated retail
    Vitamin A Swimsuit Top (view 2)Vitamin A Swimsuit Top (view 1)
    View Product: Vitamin A Swimsuit Top

    Vitamin A

    Swimsuit Top
    Size Sm
    $29.99
    73% off estimated retail
    Xhilaration Swimsuit Bottoms (view 2)Xhilaration Swimsuit Bottoms (view 1)
    View Product: Xhilaration Swimsuit Bottoms

    Xhilaration

    Swimsuit Bottoms
    Size XS
    $7.99
    38% off estimated retail
    Frederick's of Hollywood Swimsuit Top (view 2)Frederick's of Hollywood Swimsuit Top (view 1)New With Tags
    View Product: Frederick's of Hollywood Swimsuit Top
    Size Med
    $10.99
    71% 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 Lg
    $10.99
    65% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size Med
    $9.99
    60% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size Med
    $10.99
    60% 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 0
    $34.99
    72% off estimated retail
    Topshop Swimsuit Bottoms (view 2)Topshop Swimsuit Bottoms (view 1)
    View Product: Topshop Swimsuit Bottoms

    Topshop

    Swimsuit Bottoms
    Size 8
    $10.99
    68% off estimated retail
    Heidi Klein Swimsuit Bottoms (view 2)Heidi Klein Swimsuit Bottoms (view 1)
    View Product: Heidi Klein Swimsuit Bottoms

    Heidi Klein

    Swimsuit Bottoms
    Size Sm
    $31.99
    74% 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 2
    $30.99
    75% 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
    Body Glove Swimsuit Bottoms (view 2)Body Glove Swimsuit Bottoms (view 1)
    View Product: Body Glove Swimsuit Bottoms

    Body Glove

    Swimsuit Bottoms
    Size Sm
    $16.99
    66% 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 Sm
    $23.99
    65% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size XS Petite
    $10.99
    31% off estimated retail
    Huit One Piece Swimsuit (view 2)Huit One Piece Swimsuit (view 1)
    View Product: Huit One Piece Swimsuit

    Huit

    One Piece Swimsuit
    Size Med
    $32.99
    56% off estimated retail
    Robin Piccone Swimsuit Bottoms (view 2)Robin Piccone Swimsuit Bottoms (view 1)
    View Product: Robin Piccone Swimsuit Bottoms

    Robin Piccone

    Swimsuit Bottoms
    Size Med
    $19.99
    73% off estimated retail
    Nike Swimsuit Bottoms (view 2)Nike Swimsuit Bottoms (view 1)
    View Product: Nike Swimsuit Bottoms

    Nike

    Swimsuit Bottoms
    Size Sm
    $20.99
    58% off estimated retail
    Venus Swimsuit Bottoms (view 2)Venus Swimsuit Bottoms (view 1)
    View Product: Venus Swimsuit Bottoms

    Venus

    Swimsuit Bottoms
    Size 4
    $8.99
    52% off estimated retail
    Assorted Brands Two Piece Swimsuit (view 2)Assorted Brands Two Piece Swimsuit (view 1)
    View Product: Assorted Brands Two Piece Swimsuit

    Assorted Brands

    Two Piece Swimsuit
    Size 10
    $17.99
    52% off estimated retail
    Shape FX One Piece Swimsuit (view 2)Shape FX One Piece Swimsuit (view 1)
    View Product: Shape FX One Piece Swimsuit

    Shape FX

    One Piece Swimsuit
    Size 10
    $40.99
    65% off estimated retail
    PrettyLittleThing Swimsuit Top (view 2)PrettyLittleThing Swimsuit Top (view 1)
    View Product: PrettyLittleThing Swimsuit Top

    PrettyLittleThing

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

    PrettyLittleThing

    Swimsuit Bottoms
    Size 6
    $16.99
    50% off estimated retail
    Triangl Swimsuit Bottoms (view 2)Triangl Swimsuit Bottoms (view 1)
    View Product: Triangl Swimsuit Bottoms

    Triangl

    Swimsuit Bottoms
    Size Med
    $27.99
    56% off estimated retail
    Good American One Piece Swimsuit (view 2)Good American One Piece Swimsuit (view 1)
    View Product: Good American One Piece Swimsuit

    Good American

    One Piece Swimsuit
    Size 6
    $27.99
    72% off estimated retail
    P2F One Piece Swimsuit (view 2)P2F One Piece Swimsuit (view 1)
    View Product: P2F One Piece Swimsuit

    P2F

    One Piece Swimsuit
    Size Med
    $20.99
    56% off estimated retail
    Venus Swimsuit Bottoms (view 2)Venus Swimsuit Bottoms (view 1)
    View Product: Venus Swimsuit Bottoms

    Venus

    Swimsuit Bottoms
    Size 6
    $10.99
    42% off estimated retail
    Assorted Brands Two Piece Swimsuit (view 2)Assorted Brands Two Piece Swimsuit (view 1)New With Tags
    View Product: Assorted Brands Two Piece Swimsuit

    Assorted Brands

    Two Piece Swimsuit
    Size Med
    $22.99
    50% off estimated retail
    PQ Two Piece Swimsuit (view 2)PQ Two Piece Swimsuit (view 1)New With Tags
    View Product: PQ Two Piece Swimsuit

    PQ

    Two Piece Swimsuit
    Size Sm
    $47.99
    64% off estimated retail
    Smart & Sexy Swim Swimsuit Top (view 2)Smart & Sexy Swim Swimsuit Top (view 1)New With Tags
    View Product: Smart & Sexy Swim Swimsuit Top

    Smart & Sexy Swim

    Swimsuit Top
    Size XL
    $9.99
    52% off estimated retail
    Aerie Swimsuit Bottoms (view 2)Aerie Swimsuit Bottoms (view 1)
    View Product: Aerie Swimsuit Bottoms

    Aerie

    Swimsuit Bottoms
    Size Sm
    $10.99
    56% off estimated retail
    Athleta Two Piece Swimsuit (view 2)Athleta Two Piece Swimsuit (view 1)
    View Product: Athleta Two Piece Swimsuit

    Athleta

    Two Piece Swimsuit
    Size Med
    $51.99
    52% off estimated retail
    Aerie Swimsuit Bottoms (view 2)Aerie Swimsuit Bottoms (view 1)
    View Product: Aerie Swimsuit Bottoms

    Aerie

    Swimsuit Bottoms
    Size Med
    $12.99
    48% off estimated retail
    Shade & Shore Swimsuit Bottoms (view 2)Shade & Shore Swimsuit Bottoms (view 1)
    View Product: Shade & Shore Swimsuit Bottoms

    Shade & Shore

    Swimsuit Bottoms
    Size Med
    $17.99
    43% off estimated retail
    Shade & Shore Swimsuit Bottoms (view 2)Shade & Shore Swimsuit Bottoms (view 1)
    View Product: Shade & Shore Swimsuit Bottoms

    Shade & Shore

    Swimsuit Bottoms
    Size Med
    $16.99
    46% 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 8
    $33.99
    73% off estimated retail
    Shein Two Piece Swimsuit (view 2)Shein Two Piece Swimsuit (view 1)
    View Product: Shein Two Piece Swimsuit

    Shein

    Two Piece Swimsuit
    Size Lg
    $13.99
    50% off estimated retail
    Unbranded Swimsuit Cover Up (view 2)Unbranded Swimsuit Cover Up (view 1)
    View Product: Unbranded Swimsuit Cover Up

    Unbranded

    Swimsuit Cover Up
    Size XS
    $18.99
    52% 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
    Lucky Brand Swimsuit Bottoms (view 2)Lucky Brand Swimsuit Bottoms (view 1)
    View Product: Lucky Brand Swimsuit Bottoms

    Lucky Brand

    Swimsuit Bottoms
    Size Sm
    $19.99
    68% off estimated retail
    Aerie Swimsuit Bottoms (view 2)Aerie Swimsuit Bottoms (view 1)
    View Product: Aerie Swimsuit Bottoms

    Aerie

    Swimsuit Bottoms
    Size Med
    $15.99
    36% off estimated retail
    Mountain Hardwear Board Shorts (view 2)Mountain Hardwear Board Shorts (view 1)
    View Product: Mountain Hardwear Board Shorts

    Mountain Hardwear

    Board Shorts
    Size 12
    $28.99
    52% off estimated retail
    Aerie One Piece Swimsuit (view 2)Aerie One Piece Swimsuit (view 1)
    View Product: Aerie One Piece Swimsuit

    Aerie

    One Piece Swimsuit
    Size Med
    $22.99
    39% off estimated retail
    Aerie Swimsuit Top (view 2)Aerie Swimsuit Top (view 1)
    View Product: Aerie Swimsuit Top

    Aerie

    Swimsuit Top
    Size Sm
    $13.99
    44% off estimated retail
    Shein One Piece Swimsuit (view 2)Shein One Piece Swimsuit (view 1)
    View Product: Shein One Piece Swimsuit

    Shein

    One Piece Swimsuit
    Size Lg
    $13.99
    41% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size XL
    $11.99
    60% off estimated retail
    JLUXLABEL Swimsuit Top (view 2)JLUXLABEL Swimsuit Top (view 1)New With Tags
    View Product: JLUXLABEL Swimsuit Top

    JLUXLABEL

    Swimsuit Top
    Size 2X Plus
    $17.99
    28% off estimated retail
    Envya Swimwear One Piece Swimsuit (view 2)Envya Swimwear One Piece Swimsuit (view 1)
    View Product: Envya Swimwear One Piece Swimsuit

    Envya Swimwear

    One Piece Swimsuit
    Size Sm
    $15.99
    57% off estimated retail
    Marysia Swimsuit Top (view 2)Marysia Swimsuit Top (view 1)
    View Product: Marysia Swimsuit Top

    Marysia

    Swimsuit Top
    Size Med
    $65.99
    65% off estimated retail
    Maaji Swimsuit Top (view 2)Maaji Swimsuit Top (view 1)
    View Product: Maaji Swimsuit Top

    Maaji

    Swimsuit Top
    Size Lg
    $35.99
    67% off estimated retail
    Meshki Swimsuit Top (view 2)Meshki Swimsuit Top (view 1)
    View Product: Meshki Swimsuit Top

    Meshki

    Swimsuit Top
    Size Sm
    $17.99
    64% off estimated retail
    Basta Surf One Piece Swimsuit (view 2)Basta Surf One Piece Swimsuit (view 1)
    View Product: Basta Surf One Piece Swimsuit

    Basta Surf

    One Piece Swimsuit
    Size 6
    $44.99
    70% off estimated retail
    Shade & Shore Swimsuit Top (view 2)Shade & Shore Swimsuit Top (view 1)
    View Product: Shade & Shore Swimsuit Top

    Shade & Shore

    Swimsuit Top
    Size Sm
    $13.99
    56% off estimated retail
    Skemo Swimsuit Cover Up (view 2)Skemo Swimsuit Cover Up (view 1)
    View Product: Skemo Swimsuit Cover Up

    Skemo

    Swimsuit Cover Up
    Size Med
    $28.99
    78% off estimated retail
    Anne Cole Signature Swimsuit Top (view 2)Anne Cole Signature Swimsuit Top (view 1)
    View Product: Anne Cole Signature Swimsuit Top
    Size Lg
    $14.99
    53% off estimated retail
    Zaful Swimsuit Top (view 2)Zaful Swimsuit Top (view 1)
    View Product: Zaful Swimsuit Top

    Zaful

    Swimsuit Top
    Size 6
    $12.99
    48% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

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

    Xhilaration

    Swimsuit Top
    Size XL
    $7.99
    38% off estimated retail
    H&M Swimsuit Bottoms (view 2)H&M Swimsuit Bottoms (view 1)
    View Product: H&M Swimsuit Bottoms

    H&M

    Swimsuit Bottoms
    Size 6
    $9.99
    28% off estimated retail
    Nasty Gal Inc. Swimsuit Cover Up (view 2)Nasty Gal Inc. Swimsuit Cover Up (view 1)
    View Product: Nasty Gal Inc. Swimsuit Cover Up

    Nasty Gal Inc.

    Swimsuit Cover Up
    Size 10
    $30.99
    73% off estimated retail
    Anne Cole Swimsuit Bottoms (view 2)Anne Cole Swimsuit Bottoms (view 1)
    View Product: Anne Cole Swimsuit Bottoms

    Anne Cole

    Swimsuit Bottoms
    Size Lg
    $23.99
    56% off estimated retail
    J.Crew Two Piece Swimsuit (view 2)J.Crew Two Piece Swimsuit (view 1)
    View Product: J.Crew Two Piece Swimsuit

    J.Crew

    Two Piece Swimsuit
    Size Sm
    $40.99
    65% off estimated retail
    Betsey Johnson Swimsuit Bottoms (view 2)Betsey Johnson Swimsuit Bottoms (view 1)
    View Product: Betsey Johnson Swimsuit Bottoms

    Betsey Johnson

    Swimsuit Bottoms
    Size Sm
    $22.99
    64% off estimated retail
    Acacia Swimwear Swimsuit Bottoms (view 2)Acacia Swimwear Swimsuit Bottoms (view 1)
    View Product: Acacia Swimwear Swimsuit Bottoms

    Acacia Swimwear

    Swimsuit Bottoms
    Size Med
    $37.99
    72% 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 Sm
    $16.99
    69% off estimated retail
    H&M Swimsuit Top (view 2)H&M Swimsuit Top (view 1)
    View Product: H&M Swimsuit Top

    H&M

    Swimsuit Top
    Size 6
    $15.99
    20% off estimated retail
    Aerie Swimsuit Top (view 2)Aerie Swimsuit Top (view 1)
    View Product: Aerie Swimsuit Top

    Aerie

    Swimsuit Top
    Size Med
    $12.99
    48% off estimated retail
    Kona Sol One Piece Swimsuit (view 2)Kona Sol One Piece Swimsuit (view 1)
    View Product: Kona Sol One Piece Swimsuit

    Kona Sol

    One Piece Swimsuit
    Size Med
    $26.99
    34% 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 Sm
    $20.99
    61% off estimated retail
    Cupshe One Piece Swimsuit (view 2)Cupshe One Piece Swimsuit (view 1)
    View Product: Cupshe One Piece Swimsuit

    Cupshe

    One Piece Swimsuit
    Size Sm
    $17.99
    37% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size Med
    $19.99
    28% off estimated retail
    Inca Swimsuit Bottoms (view 2)Inca Swimsuit Bottoms (view 1)
    View Product: Inca Swimsuit Bottoms

    Inca

    Swimsuit Bottoms
    Size Med
    $36.99
    73% off estimated retail
    Po Swim By Ava Frati Swimsuit Bottoms (view 2)Po Swim By Ava Frati Swimsuit Bottoms (view 1)
    View Product: Po Swim By Ava Frati Swimsuit Bottoms

    Po Swim By Ava Frati

    Swimsuit Bottoms
    Size XS
    $16.99
    66% 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 XXL
    $25.99
    61% 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 XXL
    $22.99
    72% 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 Lg
    $26.99
    60% off estimated retail
    Kate Spade X Ford Swimsuit Top (view 2)Kate Spade X Ford Swimsuit Top (view 1)
    View Product: Kate Spade X Ford Swimsuit Top

    Kate Spade X Ford

    Swimsuit Top
    Size Med
    $16.99
    66% off estimated retail
    Aerie Swimsuit Bottoms (view 2)Aerie Swimsuit Bottoms (view 1)New With Tags
    View Product: Aerie Swimsuit Bottoms

    Aerie

    Swimsuit Bottoms
    Size Med
    $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 Med
    $9.99
    68% off estimated retail
    Hollister Swimsuit Bottoms (view 2)Hollister Swimsuit Bottoms (view 1)
    View Product: Hollister Swimsuit Bottoms

    Hollister

    Swimsuit Bottoms
    Size Sm
    $6.99
    69% 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 Sm
    $10.99
    65% off estimated retail
    Camila Coelho Swimsuit Top (view 2)Camila Coelho Swimsuit Top (view 1)
    View Product: Camila Coelho Swimsuit Top

    Camila Coelho

    Swimsuit Top
    Size Sm
    $42.99
    57% off estimated retail
    Zaful Swimsuit Top (view 2)Zaful Swimsuit Top (view 1)
    View Product: Zaful Swimsuit Top

    Zaful

    Swimsuit Top
    Size Med
    $9.99
    60% off estimated retail
    Lululemon Athletica Swimsuit Top (view 2)Lululemon Athletica Swimsuit Top (view 1)Flawed Gem
    View Product: Lululemon Athletica Swimsuit Top
    Size 6
    $37.99
    62% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size Sm
    $12.99
    52% off estimated retail
    SKIMS Swimsuit Top (view 2)SKIMS Swimsuit Top (view 1)
    View Product: SKIMS Swimsuit Top

    SKIMS

    Swimsuit Top
    Size Lg
    $26.99
    42% off estimated retail
    Assorted Brands One Piece Swimsuit (view 2)Assorted Brands One Piece Swimsuit (view 1)
    View Product: Assorted Brands One Piece Swimsuit

    Assorted Brands

    One Piece Swimsuit
    Size XL
    $17.99
    60% off estimated retail
    Unbranded Swimsuit Cover Up (view 2)Unbranded Swimsuit Cover Up (view 1)
    View Product: Unbranded Swimsuit Cover Up

    Unbranded

    Swimsuit Cover Up
    Size Sm
    $19.99
    50% off estimated retail

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