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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.

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40 items
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    ASOS Two Piece Swimsuit (view 2)ASOS Two Piece Swimsuit (view 1)
    View Product: ASOS Two Piece Swimsuit

    ASOS

    Two Piece Swimsuit
    Size 0
    $20.99
    34% off estimated retail
    Eddie Bauer Board Shorts (view 2)Eddie Bauer Board Shorts (view 1)
    View Product: Eddie Bauer Board Shorts

    Eddie Bauer

    Board Shorts
    Size 0
    $14.99
    65% off estimated retail
    Maui Rippers Board Shorts (view 2)Maui Rippers Board Shorts (view 1)
    View Product: Maui Rippers Board Shorts

    Maui Rippers

    Board Shorts
    Size 0
    $16.99
    55% 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
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    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
    PrettyLittleThing Swimsuit Top (view 2)PrettyLittleThing Swimsuit Top (view 1)
    View Product: PrettyLittleThing Swimsuit Top

    PrettyLittleThing

    Swimsuit Top
    Size 0
    $10.99 $8.79 20% off with code THANKU
    65% off estimated retail
    PrettyLittleThing Swimsuit Bottoms (view 2)PrettyLittleThing Swimsuit Bottoms (view 1)
    View Product: PrettyLittleThing Swimsuit Bottoms

    PrettyLittleThing

    Swimsuit Bottoms
    Size 0
    $15.99 $11.99 25% off with code THANKU
    50% off estimated retail
    PrettyLittleThing Swimsuit Top (view 2)PrettyLittleThing Swimsuit Top (view 1)
    View Product: PrettyLittleThing Swimsuit Top

    PrettyLittleThing

    Swimsuit Top
    Size 0
    $10.99 $8.79 20% off with code THANKU
    65% off estimated retail
    Polly Swimsuit Cover Up (view 2)Polly Swimsuit Cover Up (view 1)New With Tags
    View Product: Polly Swimsuit Cover Up

    Polly

    Swimsuit Cover Up
    Size 0
    $10.99 $8.79 20% off with code THANKU
    65% off estimated retail
    Athleta Board Shorts (view 2)Athleta Board Shorts (view 1)
    View Product: Athleta Board Shorts

    Athleta

    Board Shorts
    Size 0
    $26.99 $14.84 45% off with code THANKU
    54% off estimated retail
    Athleta Board Shorts (view 2)Athleta Board Shorts (view 1)
    View Product: Athleta Board Shorts

    Athleta

    Board Shorts
    Size 0
    $27.99 $14.00 50% off with code THANKU
    52% off estimated retail
    ASOS Swimsuit Bottoms (view 2)ASOS Swimsuit Bottoms (view 1)
    View Product: ASOS Swimsuit Bottoms

    ASOS

    Swimsuit Bottoms
    Size 0
    $11.99 $9.59 20% off with code THANKU
    62% 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 0
    $12.99 $9.74 25% off with code THANKU
    48% off estimated retail
    Banana Boat Swimsuit Cover Up (view 2)Banana Boat Swimsuit Cover Up (view 1)
    View Product: Banana Boat Swimsuit Cover Up

    Banana Boat

    Swimsuit Cover Up
    Size 0
    $42.99 $34.39 20% off with code THANKU
    62% off estimated retail
    Unbranded Board Shorts (view 2)Unbranded Board Shorts (view 1)
    View Product: Unbranded Board Shorts

    Unbranded

    Board Shorts
    Size 00
    $13.99 $9.79 30% off with code THANKU
    44% off estimated retail
    ASOS Swimsuit Bottoms (view 2)ASOS Swimsuit Bottoms (view 1)New With Tags
    View Product: ASOS Swimsuit Bottoms

    ASOS

    Swimsuit Bottoms
    Size 0
    $11.99 $7.79 35% off with code THANKU
    62% off estimated retail
    Good American Swimsuit Cover Up (view 2)Good American Swimsuit Cover Up (view 1)New With Tags
    View Product: Good American Swimsuit Cover Up

    Good American

    Swimsuit Cover Up
    Size 0
    $17.99 $12.59 30% off with code THANKU
    63% off estimated retail
    Shein Swimsuit Bottoms (view 2)Shein Swimsuit Bottoms (view 1)
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size 0
    $9.99 $7.49 25% off with code THANKU
    37% off estimated retail
    Kona Sol Swimsuit Top (view 2)Kona Sol Swimsuit Top (view 1)
    View Product: Kona Sol Swimsuit Top

    Kona Sol

    Swimsuit Top
    Size 0
    $16.99 $12.74 25% off with code THANKU
    32% off estimated retail
    Wild Fable Swimsuit Top (view 2)Wild Fable Swimsuit Top (view 1)New With Tags
    View Product: Wild Fable Swimsuit Top

    Wild Fable

    Swimsuit Top
    Size 00
    $7.99 $6.39 20% off with code THANKU
    50% off estimated retail
    PIPHANY Swimsuit Cover Up (view 2)PIPHANY Swimsuit Cover Up (view 1)
    View Product: PIPHANY Swimsuit Cover Up

    PIPHANY

    Swimsuit Cover Up
    Size 0
    $17.99 $10.79 40% off with code THANKU
    52% off estimated retail
    Good American One Piece Swimsuit (view 2)Good American One Piece Swimsuit (view 1)Price Drop
    View Product: Good American One Piece Swimsuit

    Good American

    One Piece Swimsuit
    Size 00
    $40.99 $24.59 40% off with code THANKU
    73% 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 00
    $50.99 $30.59 40% off with code THANKU
    66% off estimated retail
    Topshop One Piece Swimsuit (view 2)Topshop One Piece Swimsuit (view 1)Price Drop
    View Product: Topshop One Piece Swimsuit

    Topshop

    One Piece Swimsuit
    Size 0
    $23.99 $16.79 30% off with code THANKU
    64% off estimated retail
    Good American Swimsuit Bottoms (view 2)Good American Swimsuit Bottoms (view 1)Price Drop
    View Product: Good American Swimsuit Bottoms

    Good American

    Swimsuit Bottoms
    Size 00
    $25.99 $15.59 40% off with code THANKU
    74% off estimated retail
    J.Crew One Piece Swimsuit (view 2)J.Crew One Piece Swimsuit (view 1)Price Drop
    View Product: J.Crew One Piece Swimsuit

    J.Crew

    One Piece Swimsuit
    Size 0
    $28.99 $15.94 45% off with code THANKU
    77% off estimated retail
    PrettyLittleThing Swimsuit Top (view 2)PrettyLittleThing Swimsuit Top (view 1)Price Drop
    View Product: PrettyLittleThing Swimsuit Top

    PrettyLittleThing

    Swimsuit Top
    Size 0
    $10.99 $7.69 30% off with code THANKU
    65% off estimated retail
    Assorted Brands Swimsuit Cover Up (view 2)Assorted Brands Swimsuit Cover Up (view 1)Price Drop
    View Product: Assorted Brands Swimsuit Cover Up

    Assorted Brands

    Swimsuit Cover Up
    Size 0
    $14.99 $9.74 35% off with code THANKU
    60% off estimated retail
    Calvin Klein One Piece Swimsuit (view 2)Calvin Klein One Piece Swimsuit (view 1)Price Drop
    View Product: Calvin Klein One Piece Swimsuit

    Calvin Klein

    One Piece Swimsuit
    Size 0
    $32.99 $14.85 55% off with code THANKU
    75% off estimated retail
    ASOS Swimsuit Top (view 2)ASOS Swimsuit Top (view 1)Price Drop
    View Product: ASOS Swimsuit Top

    ASOS

    Swimsuit Top
    Size 0
    $11.99 $7.79 35% off with code THANKU
    62% off estimated retail
    Suboo Swimsuit Bottoms (view 2)Suboo Swimsuit Bottoms (view 1)Price Drop
    View Product: Suboo Swimsuit Bottoms

    Suboo

    Swimsuit Bottoms
    Size 0
    $17.99 $13.49 25% off with code THANKU
    85% off estimated retail
    PrettyLittleThing Swimsuit Bottoms (view 2)PrettyLittleThing Swimsuit Bottoms (view 1)Price Drop
    View Product: PrettyLittleThing Swimsuit Bottoms

    PrettyLittleThing

    Swimsuit Bottoms
    Size 0
    $10.99 $7.14 35% off with code THANKU
    65% off estimated retail
    Oiselle Swimsuit Top (view 2)Oiselle Swimsuit Top (view 1)Price Drop
    View Product: Oiselle Swimsuit Top

    Oiselle

    Swimsuit Top
    Size 0
    $12.99 $10.39 20% off with code THANKU
    74% off estimated retail
    Ann Taylor LOFT Board Shorts (view 2)Ann Taylor LOFT Board Shorts (view 1)Price Drop
    View Product: Ann Taylor LOFT Board Shorts

    Ann Taylor LOFT

    Board Shorts
    Size 00
    $11.99 $8.39 30% off with code THANKU
    75% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)Rare Find
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 0
    $9.99 $6.99 30% off with code THANKU
    60% off estimated retail
    Nasty Gal Inc. Swimsuit Bottoms (view 2)Nasty Gal Inc. Swimsuit Bottoms (view 1)Price Drop
    View Product: Nasty Gal Inc. Swimsuit Bottoms

    Nasty Gal Inc.

    Swimsuit Bottoms
    Size 0
    $9.99 $7.99 20% off with code THANKU
    86% off estimated retail
    ViX by Paula Hermanny Swimsuit Top (view 2)ViX by Paula Hermanny Swimsuit Top (view 1)Price Drop
    View Product: ViX by Paula Hermanny Swimsuit Top

    ViX by Paula Hermanny

    Swimsuit Top
    Size 0
    $9.99 $7.99 20% off with code THANKU
    93% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)Price Drop
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 0
    $7.99 $6.39 20% off with code THANKU
    68% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 0
    $8.99 $6.74 25% off with code THANKU
    40% off estimated retail
    coastal blue Swimsuit Top (view 2)coastal blue Swimsuit Top (view 1)
    View Product: coastal blue Swimsuit Top

    coastal blue

    Swimsuit Top
    Size 0
    $8.99 $7.19 20% off with code THANKU
    81% off estimated retail
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