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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.

195 items
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    Zaful Swimsuit Bottoms (view 2)Zaful Swimsuit Bottoms (view 1)
    View Product: Zaful Swimsuit Bottoms

    Zaful

    Swimsuit Bottoms
    Size 8
    $14.99
    40% off estimated retail
    Zaful Swimsuit Top (view 2)Zaful Swimsuit Top (view 1)
    View Product: Zaful Swimsuit Top

    Zaful

    Swimsuit Top
    Size 8
    $15.99
    36% off estimated retail
    Blue Island Swimsuit Cover Up (view 2)Blue Island Swimsuit Cover Up (view 1)
    View Product: Blue Island Swimsuit Cover Up

    Blue Island

    Swimsuit Cover Up
    Size XS
    $14.99
    48% off estimated retail
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size XXL
    $25.99
    46% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Calvin Klein One Piece Swimsuit (view 2)Calvin Klein One Piece Swimsuit (view 1)
    View Product: Calvin Klein One Piece Swimsuit

    Calvin Klein

    One Piece Swimsuit
    Size 8
    $22.99
    83% off estimated retail
    Gerry Swimsuit Bottoms (view 2)Gerry Swimsuit Bottoms (view 1)
    View Product: Gerry Swimsuit Bottoms

    Gerry

    Swimsuit Bottoms
    Size XL
    $19.99
    60% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size Sm
    $11.99
    52% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

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

    Merona

    One Piece Swimsuit
    Size Sm
    $22.99
    37% off estimated retail
    ZeroXposur Rash Guard (view 2)ZeroXposur Rash Guard (view 1)
    View Product: ZeroXposur Rash Guard

    ZeroXposur

    Rash Guard
    Size Med
    $29.99
    68% off estimated retail
    Burnside Board Shorts (view 2)Burnside Board Shorts (view 1)
    View Product: Burnside Board Shorts

    Burnside

    Board Shorts
    Size Lg
    $9.99
    37% off estimated retail
    Old Navy Two Piece Swimsuit (view 2)Old Navy Two Piece Swimsuit (view 1)
    View Product: Old Navy Two Piece Swimsuit

    Old Navy

    Two Piece Swimsuit
    Size Lg
    $22.99
    54% 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 Lg
    $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 Med
    $14.99
    44% off estimated retail
    Shein Swimsuit Bottoms (view 2)Shein Swimsuit Bottoms (view 1)
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size Lg
    $10.99
    31% off estimated retail
    Zaful Swimsuit Top (view 2)Zaful Swimsuit Top (view 1)
    View Product: Zaful Swimsuit Top

    Zaful

    Swimsuit Top
    Size Sm
    $11.99
    52% off estimated retail
    PrAna Board Shorts (view 2)PrAna Board Shorts (view 1)
    View Product: PrAna Board Shorts

    PrAna

    Board Shorts
    Size XS
    $26.99
    47% off estimated retail
    Becca Swimsuit Top (view 2)Becca Swimsuit Top (view 1)
    View Product: Becca Swimsuit Top

    Becca

    Swimsuit Top
    Size Med
    $12.99
    65% off estimated retail
    Fashion Nova Swimsuit Top (view 2)Fashion Nova Swimsuit Top (view 1)
    View Product: Fashion Nova Swimsuit Top

    Fashion Nova

    Swimsuit Top
    Size 1X Plus
    $10.99
    30% off estimated retail
    Soaked Swimsuit Cover Up (view 2)Soaked Swimsuit Cover Up (view 1)
    View Product: Soaked Swimsuit Cover Up

    Soaked

    Swimsuit Cover Up
    Size Lg
    $12.99
    58% off estimated retail
    Lands' End Swimsuit Bottoms (view 2)Lands' End Swimsuit Bottoms (view 1)
    View Product: Lands' End Swimsuit Bottoms

    Lands' End

    Swimsuit Bottoms
    Size 18 Plus
    $24.99
    60% off estimated retail
    ViX by Paula Hermanny Swimsuit Bottoms (view 2)ViX by Paula Hermanny Swimsuit Bottoms (view 1)
    View Product: ViX by Paula Hermanny Swimsuit Bottoms

    ViX by Paula Hermanny

    Swimsuit Bottoms
    Size Med
    $47.99
    65% 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
    Coco Swimsuit Bottoms (view 2)Coco Swimsuit Bottoms (view 1)
    View Product: Coco Swimsuit Bottoms

    Coco

    Swimsuit Bottoms
    Size 2X Plus
    Shein One Piece Swimsuit (view 2)Shein One Piece Swimsuit (view 1)Price Drop
    View Product: Shein One Piece Swimsuit

    Shein

    One Piece Swimsuit
    Size 4X Plus
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