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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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    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 3X Plus
    $16.99
    32% off estimated retail
    Active by Old Navy Swimsuit Top (view 2)Active by Old Navy Swimsuit Top (view 1)
    View Product: Active by Old Navy Swimsuit Top

    Active by Old Navy

    Swimsuit Top
    Size 3X Plus
    $10.99
    47% off estimated retail
    Active by Old Navy Swimsuit Top (view 2)Active by Old Navy Swimsuit Top (view 1)
    View Product: Active by Old Navy Swimsuit Top

    Active by Old Navy

    Swimsuit Top
    Size 3X Plus
    $10.99
    47% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 3X Plus
    $9.99
    37% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Victoria's Secret Swimsuit Top (view 2)Victoria's Secret Swimsuit Top (view 1)
    View Product: Victoria's Secret Swimsuit Top

    Victoria's Secret

    Swimsuit Top
    Size 3X Plus
    $14.99
    53% off estimated retail
    Rose Gal Swimsuit Top (view 2)Rose Gal Swimsuit Top (view 1)
    View Product: Rose Gal Swimsuit Top

    Rose Gal

    Swimsuit Top
    Size 3X Plus
    $15.99
    36% off estimated retail
    SKIMS Swimsuit Bottoms (view 2)SKIMS Swimsuit Bottoms (view 1)New With Tags
    View Product: SKIMS Swimsuit Bottoms

    SKIMS

    Swimsuit Bottoms
    Size 3X Plus
    $15.99
    57% off estimated retail
    Torrid Swimsuit Bottoms (view 2)Torrid Swimsuit Bottoms (view 1)
    View Product: Torrid Swimsuit Bottoms

    Torrid

    Swimsuit Bottoms
    Size 3X Plus
    $20.99
    58% off estimated retail
    Torrid Swimsuit Top (view 2)Torrid Swimsuit Top (view 1)
    View Product: Torrid Swimsuit Top

    Torrid

    Swimsuit Top
    Size 3X Plus
    $21.99
    56% 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 3X Plus
    $13.99
    52% off estimated retail
    Assorted Brands Swimsuit Top (view 2)Assorted Brands Swimsuit Top (view 1)
    View Product: Assorted Brands Swimsuit Top

    Assorted Brands

    Swimsuit Top
    Size 3X Plus
    $16.99
    44% off estimated retail
    SKIMS Swimsuit Top (view 2)SKIMS Swimsuit Top (view 1)New With Tags
    View Product: SKIMS Swimsuit Top

    SKIMS

    Swimsuit Top
    Size 3X Plus
    $21.99
    42% 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 3X Plus
    $35.99
    63% off estimated retail
    Andie Swimsuit Top (view 2)Andie Swimsuit Top (view 1)
    View Product: Andie Swimsuit Top

    Andie

    Swimsuit Top
    Size 3X Plus
    $33.99
    63% off estimated retail
    Andie Swimsuit Bottoms (view 2)Andie Swimsuit Bottoms (view 1)
    View Product: Andie Swimsuit Bottoms

    Andie

    Swimsuit Bottoms
    Size 3X Plus
    $35.99
    61% off estimated retail
    Anne Cole Collection Swimsuit Cover Up (view 2)Anne Cole Collection Swimsuit Cover Up (view 1)
    View Product: Anne Cole Collection Swimsuit Cover Up

    Anne Cole Collection

    Swimsuit Cover Up
    Size 3X Plus
    $31.99
    72% off estimated retail
    Anne Cole Collection Swimsuit Cover Up (view 2)Anne Cole Collection Swimsuit Cover Up (view 1)
    View Product: Anne Cole Collection Swimsuit Cover Up

    Anne Cole Collection

    Swimsuit Cover Up
    Size 3X Plus
    $31.99
    72% off estimated retail
    Unbranded Two Piece Swimsuit (view 2)Unbranded Two Piece Swimsuit (view 1)
    View Product: Unbranded Two Piece Swimsuit

    Unbranded

    Two Piece Swimsuit
    Size 3X Plus
    $16.99
    55% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 3X Plus
    $16.99
    32% off estimated retail
    Unbranded Swimsuit Cover Up (view 2)Unbranded Swimsuit Cover Up (view 1)
    View Product: Unbranded Swimsuit Cover Up

    Unbranded

    Swimsuit Cover Up
    Size 3X Plus
    $17.99
    60% 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 3X Plus
    $15.99
    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
    36% off estimated retail
    Meet.Curve Swimsuit Top (view 2)Meet.Curve Swimsuit Top (view 1)New With Tags
    View Product: Meet.Curve Swimsuit Top

    Meet.Curve

    Swimsuit Top
    Size 3X Plus
    $12.99
    48% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 3X Plus
    $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 3X Plus
    $20.99
    32% off estimated retail
    Peyton & Parker Swimsuit Top (view 2)Peyton & Parker Swimsuit Top (view 1)
    View Product: Peyton & Parker Swimsuit Top

    Peyton & Parker

    Swimsuit Top
    Size 3X Plus
    $17.99
    40% off estimated retail
    Catalina Swimsuit Top (view 2)Catalina Swimsuit Top (view 1)
    View Product: Catalina Swimsuit Top

    Catalina

    Swimsuit Top
    Size 3X Plus
    $12.99
    15% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 3X Plus
    $14.99
    40% off estimated retail
    Vineyard Vines for Target Swimsuit Bottoms (view 2)Vineyard Vines for Target Swimsuit Bottoms (view 1)
    View Product: Vineyard Vines for Target Swimsuit Bottoms

    Vineyard Vines for Target

    Swimsuit Bottoms
    Size 3X Plus
    $17.99
    28% off estimated retail
    OFUURE Two Piece Swimsuit (view 2)OFUURE Two Piece Swimsuit (view 1)New With Tags
    View Product: OFUURE Two Piece Swimsuit

    OFUURE

    Two Piece Swimsuit
    Size 3X Plus
    $64.99
    53% off estimated retail
    Kitty Two Piece Swimsuit (view 2)Kitty Two Piece Swimsuit (view 1)New With Tags
    View Product: Kitty Two Piece Swimsuit

    Kitty

    Two Piece Swimsuit
    Size 3X Plus
    $18.99
    62% off estimated retail
    Terra & Sky Swimsuit Top (view 2)Terra & Sky Swimsuit Top (view 1)
    View Product: Terra & Sky Swimsuit Top

    Terra & Sky

    Swimsuit Top
    Size 3X Plus
    $12.99 $13
    Shein Swimsuit Bottoms (view 2)Shein Swimsuit Bottoms (view 1)
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size 3X Plus
    $10.99
    31% off estimated retail
    Shein One Piece Swimsuit (view 2)Shein One Piece Swimsuit (view 1)
    View Product: Shein One Piece Swimsuit

    Shein

    One Piece Swimsuit
    Size 3X Plus
    $15.99
    33% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 3X Plus
    $15.99
    57% off estimated retail
    Shein One Piece Swimsuit (view 2)Shein One Piece Swimsuit (view 1)
    View Product: Shein One Piece Swimsuit

    Shein

    One Piece Swimsuit
    Size 3X Plus
    $14.99
    37% off estimated retail
    Halara Swimsuit Top (view 2)Halara Swimsuit Top (view 1)
    View Product: Halara Swimsuit Top

    Halara

    Swimsuit Top
    Size 3X Plus
    $25.99
    34% off estimated retail
    Icon Swim Two Piece Swimsuit (view 2)Icon Swim Two Piece Swimsuit (view 1)New With Tags
    View Product: Icon Swim Two Piece Swimsuit

    Icon Swim

    Two Piece Swimsuit
    Size 3X Plus
    $26.99
    54% off estimated retail
    Sea Angel One Piece Swimsuit (view 2)Sea Angel One Piece Swimsuit (view 1)
    View Product: Sea Angel One Piece Swimsuit

    Sea Angel

    One Piece Swimsuit
    Size 3X Plus
    $28.99
    39% off estimated retail
    Unbranded Board Shorts (view 2)Unbranded Board Shorts (view 1)
    View Product: Unbranded Board Shorts

    Unbranded

    Board Shorts
    Size 3X Plus
    $10.99
    64% off estimated retail
    Forever 21 One Piece Swimsuit (view 2)Forever 21 One Piece Swimsuit (view 1)New With Tags
    View Product: Forever 21 One Piece Swimsuit

    Forever 21

    One Piece Swimsuit
    Size 3X Plus
    $25.99
    39% off estimated retail
    Sporti One Piece Swimsuit (view 2)Sporti One Piece Swimsuit (view 1)
    View Product: Sporti One Piece Swimsuit

    Sporti

    One Piece Swimsuit
    Size 28 Plus
    $13.99
    50% off estimated retail
    Zara Board Shorts (view 2)Zara Board Shorts (view 1)
    View Product: Zara Board Shorts

    Zara

    Board Shorts
    Size 3X Plus
    $22.99
    52% off estimated retail
    Cocoship One Piece Swimsuit (view 2)Cocoship One Piece Swimsuit (view 1)
    View Product: Cocoship One Piece Swimsuit

    Cocoship

    One Piece Swimsuit
    Size 3X Plus
    $23.99
    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
    $18.99
    28% off estimated retail
    Torrid Swimsuit Bottoms (view 2)Torrid Swimsuit Bottoms (view 1)
    View Product: Torrid Swimsuit Bottoms

    Torrid

    Swimsuit Bottoms
    Size 3X Plus
    $20.99
    58% off estimated retail
    Torrid Swimsuit Bottoms (view 2)Torrid Swimsuit Bottoms (view 1)
    View Product: Torrid Swimsuit Bottoms

    Torrid

    Swimsuit Bottoms
    Size 3X Plus
    $32.99
    35% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 3X Plus
    $17.99
    60% off estimated retail
    Kona Sol Swimsuit Bottoms (view 2)Kona Sol Swimsuit Bottoms (view 1)New With Tags
    View Product: Kona Sol Swimsuit Bottoms

    Kona Sol

    Swimsuit Bottoms
    Size 3X Plus
    $20.99
    37% off estimated retail
    Longitude One Piece Swimsuit (view 2)Longitude One Piece Swimsuit (view 1)
    View Product: Longitude One Piece Swimsuit

    Longitude

    One Piece Swimsuit
    Size 28 Plus
    $31.99
    59% off estimated retail
    J.Crew Swimsuit Top (view 2)J.Crew Swimsuit Top (view 1)New With Tags
    View Product: J.Crew Swimsuit Top

    J.Crew

    Swimsuit Top
    Size 3X Plus
    $21.99
    70% off estimated retail
    Catherines Swimsuit Top (view 2)Catherines Swimsuit Top (view 1)New With Tags
    View Product: Catherines Swimsuit Top

    Catherines

    Swimsuit Top
    Size 28 Plus
    $15.99
    50% off estimated retail
    Nike Swimsuit Bottoms (view 2)Nike Swimsuit Bottoms (view 1)
    View Product: Nike Swimsuit Bottoms

    Nike

    Swimsuit Bottoms
    Size 3X Plus
    $26.99
    56% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 3X Plus
    $6.99
    76% off estimated retail
    Catalina Swimsuit Top (view 2)Catalina Swimsuit Top (view 1)
    View Product: Catalina Swimsuit Top

    Catalina

    Swimsuit Top
    Size 3X Plus
    $8.99
    38% off estimated retail
    Burnside Board Shorts (view 2)Burnside Board Shorts (view 1)
    View Product: Burnside Board Shorts

    Burnside

    Board Shorts
    Size 3X Plus
    $13.99
    29% off estimated retail
    Torrid Swimsuit Cover Up (view 2)Torrid Swimsuit Cover Up (view 1)
    View Product: Torrid Swimsuit Cover Up

    Torrid

    Swimsuit Cover Up
    Size 3X Plus
    $27.99
    63% off estimated retail
    Old Navy Swimsuit Bottoms (view 2)Old Navy Swimsuit Bottoms (view 1)
    View Product: Old Navy Swimsuit Bottoms

    Old Navy

    Swimsuit Bottoms
    Size 3X Plus
    $15.99
    40% off estimated retail
    Old Navy Swimsuit Bottoms (view 2)Old Navy Swimsuit Bottoms (view 1)
    View Product: Old Navy Swimsuit Bottoms

    Old Navy

    Swimsuit Bottoms
    Size 3X Plus
    $12.99
    52% off estimated retail
    Old Navy Swimsuit Bottoms (view 2)Old Navy Swimsuit Bottoms (view 1)
    View Product: Old Navy Swimsuit Bottoms

    Old Navy

    Swimsuit Bottoms
    Size 3X Plus
    $12.99
    52% 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 3X Plus
    $28.99
    37% off estimated retail
    Old Navy Swimsuit Bottoms (view 2)Old Navy Swimsuit Bottoms (view 1)
    View Product: Old Navy Swimsuit Bottoms

    Old Navy

    Swimsuit Bottoms
    Size 3X Plus
    $15.99
    40% off estimated retail
    Old Navy Swimsuit Top (view 2)Old Navy Swimsuit Top (view 1)
    View Product: Old Navy Swimsuit Top

    Old Navy

    Swimsuit Top
    Size 3X Plus
    $16.99
    36% off estimated retail
    Empetua Swimsuit Bottoms (view 2)Empetua Swimsuit Bottoms (view 1)
    View Product: Empetua Swimsuit Bottoms

    Empetua

    Swimsuit Bottoms
    Size 3X Plus
    $42.99
    53% off estimated retail
    Assorted Brands Swimsuit Top (view 2)Assorted Brands Swimsuit Top (view 1)
    View Product: Assorted Brands Swimsuit Top

    Assorted Brands

    Swimsuit Top
    Size 3X Plus
    $20.99
    32% 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 3X Plus
    $9.99
    23% off estimated retail
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