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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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17 items
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    Torrid Swimsuit Top (view 2)Torrid Swimsuit Top (view 1)
    View Product: Torrid Swimsuit Top

    Torrid

    Swimsuit Top
    Size 3X Plus
    $22.99
    54% off estimated retail
    Catalina Swimsuit Top (view 2)Catalina Swimsuit Top (view 1)New With Tags
    View Product: Catalina Swimsuit Top

    Catalina

    Swimsuit Top
    Size 3X Plus
    $7.99
    38% off estimated retail
    Fashion Nova One Piece Swimsuit (view 2)Fashion Nova One Piece Swimsuit (view 1)
    View Product: Fashion Nova One Piece Swimsuit

    Fashion Nova

    One Piece Swimsuit
    Size 3X Plus
    $11.99 $9.59 20% off with code THANKU
    36% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 3X Plus
    $15.99 $10.39 35% off with code THANKU
    36% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Old Navy Swimsuit Top (view 2)Old Navy Swimsuit Top (view 1)New With Tags
    View Product: Old Navy Swimsuit Top

    Old Navy

    Swimsuit Top
    Size 3X Plus
    $11.99 $7.79 35% off with code THANKU
    52% off estimated retail
    Old Navy Swimsuit Bottoms (view 2)Old Navy Swimsuit Bottoms (view 1)New With Tags
    View Product: Old Navy Swimsuit Bottoms

    Old Navy

    Swimsuit Bottoms
    Size 3X Plus
    $10.99 $7.69 30% off with code THANKU
    56% off estimated retail
    Nike One Piece Swimsuit (view 2)Nike One Piece Swimsuit (view 1)
    View Product: Nike One Piece Swimsuit

    Nike

    One Piece Swimsuit
    Size 30 Plus
    $25.99 $15.59 40% off with code THANKU
    65% off estimated retail
    Shein Swimsuit Bottoms (view 2)Shein Swimsuit Bottoms (view 1)
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size 3X Plus
    $10.99 $7.69 30% off with code THANKU
    31% off estimated retail
    Old Navy Swimsuit Bottoms (view 2)Old Navy Swimsuit Bottoms (view 1)New With Tags
    View Product: Old Navy Swimsuit Bottoms

    Old Navy

    Swimsuit Bottoms
    Size 3X Plus
    $13.99 $7.00 50% off with code THANKU
    44% off estimated retail
    Rhode X Target Swimsuit Bottoms (view 2)Rhode X Target Swimsuit Bottoms (view 1)New With Tags
    View Product: Rhode X Target Swimsuit Bottoms

    Rhode X Target

    Swimsuit Bottoms
    Size 3X Plus
    $12.99 $8.44 35% off with code THANKU
    48% off estimated retail
    Shein Swimsuit Bottoms (view 2)Shein Swimsuit Bottoms (view 1)Price Drop
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size 3X Plus
    $10.99 $7.14 35% off with code THANKU
    31% off estimated retail
    Nicole Miller Studio Swimsuit Bottoms (view 2)Nicole Miller Studio Swimsuit Bottoms (view 1)New With Tags
    View Product: Nicole Miller Studio Swimsuit Bottoms

    Nicole Miller Studio

    Swimsuit Bottoms
    Size 3X Plus
    $12.99 $9.09 30% off with code THANKU
    75% off estimated retail
    rue21 Swimsuit Bottoms (view 2)rue21 Swimsuit Bottoms (view 1)
    View Product: rue21 Swimsuit Bottoms

    rue21

    Swimsuit Bottoms
    Size 3X Plus
    $7.99 $6.39 20% off with code THANKU
    38% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)Price Drop
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 3X Plus
    $11.99 $7.19 40% off with code THANKU
    25% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)Price Drop
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 3X Plus
    $10.99 $7.14 35% off with code THANKU
    31% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)Price Drop
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 30 Plus
    $10.99 $7.69 30% off with code THANKU
    56% off estimated retail
    Shein Swimsuit Bottoms (view 2)Shein Swimsuit Bottoms (view 1)Price Drop
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size 3X Plus
    $9.99 $6.99 30% off with code THANKU
    37% off estimated retail
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