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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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44 items
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    Sun N Sand Swimsuit Bottoms (view 2)Sun N Sand Swimsuit Bottoms (view 1)New With Tags
    View Product: Sun N Sand Swimsuit Bottoms

    Sun N Sand

    Swimsuit Bottoms
    Size 2X Plus
    $10.99 $8.79 20% off with code THANKU
    42% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 2X Plus
    $8.99 $7.19 20% off with code THANKU
    43% off estimated retail
    Shein Swimsuit Bottoms (view 2)Shein Swimsuit Bottoms (view 1)
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size 2X Plus
    $7.99 $6.39 20% off with code THANKU
    50% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 2X Plus
    $8.99 $7.19 20% off with code THANKU
    43% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Coastal Swimsuit Top (view 2)Coastal Swimsuit Top (view 1)New With Tags
    View Product: Coastal Swimsuit Top

    Coastal

    Swimsuit Top
    Size 2X Plus
    $10.99 $8.79 20% off with code THANKU
    15% off estimated retail
    Wild Fable Swimsuit Bottoms (view 2)Wild Fable Swimsuit Bottoms (view 1)New With Tags
    View Product: Wild Fable Swimsuit Bottoms

    Wild Fable

    Swimsuit Bottoms
    Size 2X Plus
    $10.99 $8.79 20% off with code THANKU
    38% off estimated retail
    Stoney Clover Lane x Target Swimsuit Bottoms (view 2)Stoney Clover Lane x Target Swimsuit Bottoms (view 1)New With Tags
    View Product: Stoney Clover Lane x Target Swimsuit Bottoms

    Stoney Clover Lane x Target

    Swimsuit Bottoms
    Size 2X Plus
    $7.99 $6.39 20% off with code THANKU
    11% off estimated retail
    Terra & Sky Swimsuit Bottoms (view 2)Terra & Sky Swimsuit Bottoms (view 1)
    View Product: Terra & Sky Swimsuit Bottoms

    Terra & Sky

    Swimsuit Bottoms
    Size 2X Plus
    $9.99 $7.99 20% off with code THANKU
    23% off estimated retail
    Zaful Swimsuit Top (view 2)Zaful Swimsuit Top (view 1)
    View Product: Zaful Swimsuit Top

    Zaful

    Swimsuit Top
    Size 2X Plus
    $10.99 $8.79 20% off with code THANKU
    56% off estimated retail
    Wild Fable Swimsuit Bottoms (view 2)Wild Fable Swimsuit Bottoms (view 1)
    View Product: Wild Fable Swimsuit Bottoms

    Wild Fable

    Swimsuit Bottoms
    Size 2X Plus
    $7.99 $6.39 20% off with code THANKU
    50% off estimated retail
    Cider Swimsuit Top (view 2)Cider Swimsuit Top (view 1)
    View Product: Cider Swimsuit Top

    Cider

    Swimsuit Top
    Size 2X Plus
    $11.99 $9.59 20% off with code THANKU
    52% off estimated retail
    Zaful Swimsuit Top (view 2)Zaful Swimsuit Top (view 1)
    View Product: Zaful Swimsuit Top

    Zaful

    Swimsuit Top
    Size 2X Plus
    $10.99 $8.79 20% off with code THANKU
    56% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 2X Plus
    $7.99 $6.39 20% off with code THANKU
    50% off estimated retail
    Torrid Swimsuit Top (view 2)Torrid Swimsuit Top (view 1)New With Tags
    View Product: Torrid Swimsuit Top

    Torrid

    Swimsuit Top
    Size 2X Plus
    $52.99 $42.39 20% off with code THANKU
    51% 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 2X Plus
    $49.99 $39.99 20% off with code THANKU
    67% off estimated retail
    Apt. 9 Swimsuit Bottoms (view 2)Apt. 9 Swimsuit Bottoms (view 1)
    View Product: Apt. 9 Swimsuit Bottoms

    Apt. 9

    Swimsuit Bottoms
    Size 2X Plus
    $10.99 $8.79 20% off with code THANKU
    74% off estimated retail
    Bongo Plus Swimsuit Bottoms (view 2)Bongo Plus Swimsuit Bottoms (view 1)
    View Product: Bongo Plus Swimsuit Bottoms

    Bongo Plus

    Swimsuit Bottoms
    Size 2X Plus
    $9.99 $7.99 20% off with code THANKU
    60% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 2X Plus
    $6.99 $5.59 20% off with code THANKU
    72% off estimated retail
    Fashion Swimsuit Bottoms (view 2)Fashion Swimsuit Bottoms (view 1)
    View Product: Fashion Swimsuit Bottoms

    Fashion

    Swimsuit Bottoms
    Size 2X Plus
    $7.99 $6.39 20% off with code THANKU
    68% off estimated retail
    Unbranded Board Shorts (view 2)Unbranded Board Shorts (view 1)
    View Product: Unbranded Board Shorts

    Unbranded

    Board Shorts
    Size 2X Plus
    $8.99 $7.19 20% off with code THANKU
    64% off estimated retail
    SO Swimsuit Bottoms (view 2)SO Swimsuit Bottoms (view 1)
    View Product: SO Swimsuit Bottoms

    SO

    Swimsuit Bottoms
    Size 2X Plus
    $8.99 $7.19 20% off with code THANKU
    43% off estimated retail
    SO Swimsuit Top (view 2)SO Swimsuit Top (view 1)
    View Product: SO Swimsuit Top

    SO

    Swimsuit Top
    Size 2X Plus
    $7.99 $6.39 20% off with code THANKU
    50% off estimated retail
    Catalina Swimsuit Bottoms (view 2)Catalina Swimsuit Bottoms (view 1)
    View Product: Catalina Swimsuit Bottoms

    Catalina

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

    Shein

    Swimsuit Bottoms
    Size 2X Plus
    $7.99 $6.39 20% off with code THANKU
    50% off estimated retail
    Joe Boxer Swimsuit Bottoms (view 2)Joe Boxer Swimsuit Bottoms (view 1)New With Tags
    View Product: Joe Boxer Swimsuit Bottoms

    Joe Boxer

    Swimsuit Bottoms
    Size 2X Plus
    $12.99 $10.39 20% off with code THANKU
    40% off estimated retail
    VM Swimsuit Bottoms (view 2)VM Swimsuit Bottoms (view 1)Price Drop
    View Product: VM Swimsuit Bottoms

    VM

    Swimsuit Bottoms
    Size 2X Plus
    $10.99 $8.79 20% off with code THANKU
    56% off estimated retail
    VM Swimsuit Bottoms (view 2)VM Swimsuit Bottoms (view 1)Price Drop
    View Product: VM Swimsuit Bottoms

    VM

    Swimsuit Bottoms
    Size 2X Plus
    $11.99 $9.59 20% off with code THANKU
    52% off estimated retail
    Infamous Swimsuit Bottoms (view 2)Infamous Swimsuit Bottoms (view 1)New With Tags
    View Product: Infamous Swimsuit Bottoms

    Infamous

    Swimsuit Bottoms
    Size 2X Plus
    $9.99 $7.99 20% off with code THANKU
    23% off estimated retail
    YMI Swimsuit Top (view 2)YMI Swimsuit Top (view 1)Price Drop
    View Product: YMI Swimsuit Top

    YMI

    Swimsuit Top
    Size 2X Plus
    $11.99 $9.59 20% off with code THANKU
    52% off estimated retail
    YMI Swimsuit Bottoms (view 2)YMI Swimsuit Bottoms (view 1)Price Drop
    View Product: YMI Swimsuit Bottoms

    YMI

    Swimsuit Bottoms
    Size 2X Plus
    $10.99 $8.79 20% off with code THANKU
    56% off estimated retail
    Rebdolls Swimsuit Bottoms (view 2)Rebdolls Swimsuit Bottoms (view 1)Price Drop
    View Product: Rebdolls Swimsuit Bottoms

    Rebdolls

    Swimsuit Bottoms
    Size 2X Plus
    $8.99 $7.19 20% off with code THANKU
    71% off estimated retail
    XOXO Swimsuit Bottoms (view 2)XOXO Swimsuit Bottoms (view 1)Price Drop
    View Product: XOXO Swimsuit Bottoms

    XOXO

    Swimsuit Bottoms
    Size 2X Plus
    $9.99 $7.99 20% off with code THANKU
    60% off estimated retail
    Inmocean Swimsuit Bottoms (view 2)Inmocean Swimsuit Bottoms (view 1)Price Drop
    View Product: Inmocean Swimsuit Bottoms

    Inmocean

    Swimsuit Bottoms
    Size 2X Plus
    $9.99 $7.99 20% off with code THANKU
    47% off estimated retail
    Meet.Curve Swimsuit Bottoms (view 2)Meet.Curve Swimsuit Bottoms (view 1)Price Drop
    View Product: Meet.Curve Swimsuit Bottoms

    Meet.Curve

    Swimsuit Bottoms
    Size 2X Plus
    $9.99 $7.99 20% off with code THANKU
    60% off estimated retail
    Apt. 9 Swimsuit Bottoms (view 2)Apt. 9 Swimsuit Bottoms (view 1)Price Drop
    View Product: Apt. 9 Swimsuit Bottoms

    Apt. 9

    Swimsuit Bottoms
    Size 2X Plus
    $8.99 $7.19 20% off with code THANKU
    79% off estimated retail
    Shein Swimsuit Bottoms (view 2)Shein Swimsuit Bottoms (view 1)Price Drop
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size 2X Plus
    $7.99 $6.39 20% off with code THANKU
    50% off estimated retail
    floryday Swimsuit Bottoms (view 2)floryday Swimsuit Bottoms (view 1)Price Drop
    View Product: floryday Swimsuit Bottoms

    floryday

    Swimsuit Bottoms
    Size 2X Plus
    $7.99 $6.39 20% off with code THANKU
    77% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)Price Drop
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 2X Plus
    $6.99 $5.59 20% off with code THANKU
    70% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)Price Drop
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 2X Plus
    $6.99 $5.59 20% off with code THANKU
    70% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)Price Drop
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 2X Plus
    $6.99 $5.59 20% off with code THANKU
    70% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)Price Drop
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 2X Plus
    $6.99 $5.59 20% off with code THANKU
    70% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)Price Drop
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 2X Plus
    $6.99 $5.59 20% off with code THANKU
    70% off estimated retail
    Assorted Brands Swimsuit Bottoms (view 2)Assorted Brands Swimsuit Bottoms (view 1)Price Drop
    View Product: Assorted Brands Swimsuit Bottoms

    Assorted Brands

    Swimsuit Bottoms
    Size 2X Plus
    $6.99 $5.59 20% off with code THANKU
    70% off estimated retail
    Assorted Brands Swimsuit Bottoms (view 2)Assorted Brands Swimsuit Bottoms (view 1)Price Drop
    View Product: Assorted Brands Swimsuit Bottoms

    Assorted Brands

    Swimsuit Bottoms
    Size 2X Plus
    $6.99 $5.59 20% off with code THANKU
    70% off estimated retail
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