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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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34 items
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    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 00
    $32.99
    74% off estimated retail
    Good American Swimsuit Top (view 2)Good American Swimsuit Top (view 1)
    View Product: Good American Swimsuit Top

    Good American

    Swimsuit Top
    Size 00
    $24.99
    75% off estimated retail
    Good American One Piece Swimsuit (view 2)Good American One Piece Swimsuit (view 1)New With Tags
    View Product: Good American One Piece Swimsuit

    Good American

    One Piece Swimsuit
    Size 00
    $75.99
    23% 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
    $13.99 $10.49 25% off with code HOTDEAL
    67% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Maui Rippers Board Shorts (view 2)Maui Rippers Board Shorts (view 1)
    View Product: Maui Rippers Board Shorts

    Maui Rippers

    Board Shorts
    Size 0
    $14.99 $11.24 25% off with code HOTDEAL
    60% off estimated retail
    PrettyLittleThing Swimsuit Bottoms (view 2)PrettyLittleThing Swimsuit Bottoms (view 1)
    View Product: PrettyLittleThing Swimsuit Bottoms

    PrettyLittleThing

    Swimsuit Bottoms
    Size 0
    $17.99 $13.49 25% off with code HOTDEAL
    50% 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 $13.50 50% off with code HOTDEAL
    54% off estimated retail
    ASOS Swimsuit Bottoms (view 2)ASOS Swimsuit Bottoms (view 1)
    View Product: ASOS Swimsuit Bottoms

    ASOS

    Swimsuit Bottoms
    Size 0
    $12.99 $9.74 25% off with code HOTDEAL
    62% 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
    $44.99 $31.49 30% off with code HOTDEAL
    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 HOTDEAL
    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
    $12.99 $7.79 40% off with code HOTDEAL
    62% 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 HOTDEAL
    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
    $17.99 $13.49 25% off with code HOTDEAL
    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 HOTDEAL
    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 HOTDEAL
    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 HOTDEAL
    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 $28.04 45% off with code HOTDEAL
    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
    $24.99 $13.74 45% off with code HOTDEAL
    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
    $27.99 $12.60 55% off with code HOTDEAL
    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
    $29.99 $13.50 55% off with code HOTDEAL
    78% 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
    $11.99 $5.40 55% off with code HOTDEAL
    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
    $17.99 $7.20 60% off with code HOTDEAL
    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
    $38.99 $11.70 70% off with code HOTDEAL
    77% 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
    $13.99 $4.90 65% off with code HOTDEAL
    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
    $29.99 $16.49 45% off with code HOTDEAL
    86% 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
    $12.99 $5.20 60% off with code HOTDEAL
    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
    $17.99 $10.79 40% off with code HOTDEAL
    76% 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
    $14.99 $7.50 50% off with code HOTDEAL
    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
    $10.99 $4.95 55% off with code HOTDEAL
    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
    $13.99 $8.39 40% off with code HOTDEAL
    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
    $29.99 $17.99 40% off with code HOTDEAL
    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
    $10.24 $5.63 45% off with code HOTDEAL
    68% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 0
    $12.24 $6.12 50% off with code HOTDEAL
    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
    $13.24 $7.94 40% off with code HOTDEAL
    81% off estimated retail
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