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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    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
    $10.99
    54% off estimated retail
    Torrid Swimsuit Top (view 2)Torrid Swimsuit Top (view 1)
    View Product: Torrid Swimsuit Top

    Torrid

    Swimsuit Top
    Size 2X Plus
    $19.99
    60% off estimated retail
    Collections By Catalina Swimsuit Bottoms (view 2)Collections By Catalina Swimsuit Bottoms (view 1)
    View Product: Collections By Catalina Swimsuit Bottoms

    Collections By Catalina

    Swimsuit Bottoms
    Size 2X Plus
    $17.99
    28% off estimated retail
    Time and Tru Swimsuit Top (view 2)Time and Tru Swimsuit Top (view 1)
    View Product: Time and Tru Swimsuit Top

    Time and Tru

    Swimsuit Top
    Size 3X Plus
    $6.99
    46% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Fabletics Swimsuit Bottoms (view 2)Fabletics Swimsuit Bottoms (view 1)
    View Product: Fabletics Swimsuit Bottoms

    Fabletics

    Swimsuit Bottoms
    Size 2X Plus
    $13.99
    56% off estimated retail
    Catalina Swimsuit Bottoms (view 2)Catalina Swimsuit Bottoms (view 1)
    View Product: Catalina Swimsuit Bottoms

    Catalina

    Swimsuit Bottoms
    Size 2X Plus
    $12.99 $13
    Time and Tru Swimsuit Top (view 2)Time and Tru Swimsuit Top (view 1)
    View Product: Time and Tru Swimsuit Top

    Time and Tru

    Swimsuit Top
    Size 2X Plus
    $8.99
    30% off estimated retail
    Time and Tru Swimsuit Top (view 2)Time and Tru Swimsuit Top (view 1)
    View Product: Time and Tru Swimsuit Top

    Time and Tru

    Swimsuit Top
    Size 3X Plus
    $8.99
    30% off estimated retail
    Time and Tru Swimsuit Top (view 2)Time and Tru Swimsuit Top (view 1)New With Tags
    View Product: Time and Tru Swimsuit Top

    Time and Tru

    Swimsuit Top
    Size 2X Plus
    $9.99
    50% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 2X Plus
    $10.99
    56% 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 2X Plus
    $14.99
    40% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 3X Plus
    $12.99
    18% off estimated retail
    Torrid One Piece Swimsuit (view 2)Torrid One Piece Swimsuit (view 1)
    View Product: Torrid One Piece Swimsuit

    Torrid

    One Piece Swimsuit
    Size 3X Plus
    $34.99
    53% off estimated retail
    Catalina One Piece Swimsuit (view 2)Catalina One Piece Swimsuit (view 1)New With Tags
    View Product: Catalina One Piece Swimsuit

    Catalina

    One Piece Swimsuit
    Size 2X Plus
    $14.99 $16.48
    Torrid Swimsuit Top (view 2)Torrid Swimsuit Top (view 1)
    View Product: Torrid Swimsuit Top

    Torrid

    Swimsuit Top
    Size 3X Plus
    $24.99
    51% 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
    $28.99
    51% 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 2X Plus
    $13.99
    44% off estimated retail
    Anne Cole Signature Swimsuit Bottoms (view 2)Anne Cole Signature Swimsuit Bottoms (view 1)
    View Product: Anne Cole Signature Swimsuit Bottoms

    Anne Cole Signature

    Swimsuit Bottoms
    Size 2X Plus
    $16.99
    46% off estimated retail
    BLOOMCHIC Swimsuit Bottoms (view 2)BLOOMCHIC Swimsuit Bottoms (view 1)
    View Product: BLOOMCHIC Swimsuit Bottoms

    BLOOMCHIC

    Swimsuit Bottoms
    Size 28 Plus
    $15.99
    36% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 2X Plus
    $12.99
    18% off estimated retail
    Wild Fable Swimsuit Top (view 2)Wild Fable Swimsuit Top (view 1)
    View Product: Wild Fable Swimsuit Top

    Wild Fable

    Swimsuit Top
    Size 2X Plus
    $10.99
    31% 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
    $18.99
    50% off estimated retail
    Christina Swimsuit Cover Up (view 2)Christina Swimsuit Cover Up (view 1)
    View Product: Christina Swimsuit Cover Up

    Christina

    Swimsuit Cover Up
    Size 3X Plus
    $19.99
    58% off estimated retail
    ModCloth Swimsuit Top (view 2)ModCloth Swimsuit Top (view 1)
    View Product: ModCloth Swimsuit Top

    ModCloth

    Swimsuit Top
    Size 2X Plus
    $10.99
    65% 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 2X Plus
    $18.99
    40% off estimated retail
    D&Co. Swimsuit Cover Up (view 2)D&Co. Swimsuit Cover Up (view 1)
    View Product: D&Co. Swimsuit Cover Up

    D&Co.

    Swimsuit Cover Up
    Size 3X Plus
    $14.99
    21% off estimated retail
    Torrid One Piece Swimsuit (view 2)Torrid One Piece Swimsuit (view 1)
    View Product: Torrid One Piece Swimsuit

    Torrid

    One Piece Swimsuit
    Size 3X Plus
    $37.99
    50% off estimated retail
    Time and Tru Swimsuit Bottoms (view 2)Time and Tru Swimsuit Bottoms (view 1)
    View Product: Time and Tru Swimsuit Bottoms

    Time and Tru

    Swimsuit Bottoms
    Size 3X Plus
    $5.99
    53% off estimated retail
    Time and Tru Swimsuit Top (view 2)Time and Tru Swimsuit Top (view 1)
    View Product: Time and Tru Swimsuit Top

    Time and Tru

    Swimsuit Top
    Size 3X Plus
    $5.99
    53% 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
    $13.99
    68% off estimated retail
    Assorted Brands One Piece Swimsuit (view 2)Assorted Brands One Piece Swimsuit (view 1)
    View Product: Assorted Brands One Piece Swimsuit

    Assorted Brands

    One Piece Swimsuit
    Size 2X Plus
    $17.99
    52% off estimated retail
    Assorted Brands One Piece Swimsuit (view 2)Assorted Brands One Piece Swimsuit (view 1)
    View Product: Assorted Brands One Piece Swimsuit

    Assorted Brands

    One Piece Swimsuit
    Size 3X Plus
    $18.99
    50% off estimated retail
    Simply Fit Swimsuit Bottoms (view 2)Simply Fit Swimsuit Bottoms (view 1)New With Tags
    View Product: Simply Fit Swimsuit Bottoms

    Simply Fit

    Swimsuit Bottoms
    Size 3X Plus
    $35.99
    30% off estimated retail
    Coco Reef Swimsuit Bottoms (view 2)Coco Reef Swimsuit Bottoms (view 1)New With Tags
    View Product: Coco Reef Swimsuit Bottoms

    Coco Reef

    Swimsuit Bottoms
    Size 3X Plus
    $29.99
    41% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 2X 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 2X Plus
    $11.99
    52% off estimated retail
    Assorted Brands Board Shorts (view 2)Assorted Brands Board Shorts (view 1)
    View Product: Assorted Brands Board Shorts

    Assorted Brands

    Board Shorts
    Size 2X Plus
    $14.99
    40% 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
    $15.99
    36% off estimated retail
    Maaji Swimsuit Top (view 2)Maaji Swimsuit Top (view 1)
    View Product: Maaji Swimsuit Top

    Maaji

    Swimsuit Top
    Size 2X Plus
    $22.99
    74% 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 2X Plus
    $25.99
    42% 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
    $10.99
    56% 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 2X Plus
    $17.99
    28% off estimated retail
    Cupshe Swimsuit Top (view 2)Cupshe Swimsuit Top (view 1)
    View Product: Cupshe Swimsuit Top

    Cupshe

    Swimsuit Top
    Size 3X Plus
    $13.99
    26% off estimated retail
    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 3X Plus
    $11.99
    25% off estimated retail
    Assorted Brands Swimsuit Bottoms (view 2)Assorted Brands Swimsuit Bottoms (view 1)New With Tags
    View Product: Assorted Brands Swimsuit Bottoms

    Assorted Brands

    Swimsuit Bottoms
    Size 3X Plus
    $10.99
    56% 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
    $11.99
    52% 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
    $17.99
    28% off estimated retail
    Aqua Green Swimsuit Top (view 2)Aqua Green Swimsuit Top (view 1)
    View Product: Aqua Green Swimsuit Top

    Aqua Green

    Swimsuit Top
    Size 2X Plus
    $17.99
    28% off estimated retail
    Athleta Board Shorts (view 2)Athleta Board Shorts (view 1)
    View Product: Athleta Board Shorts

    Athleta

    Board Shorts
    Size 3X Plus
    $24.99
    57% off estimated retail
    Athleta Board Shorts (view 2)Athleta Board Shorts (view 1)
    View Product: Athleta Board Shorts

    Athleta

    Board Shorts
    Size 3X Plus
    $28.99
    50% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)New With Tags
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 3X Plus
    $18.99
    50% 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
    $16.99
    32% 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 2X Plus
    $13.99
    44% 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 2X Plus
    $15.99
    57% off estimated retail
    Torrid One Piece Swimsuit (view 2)Torrid One Piece Swimsuit (view 1)
    View Product: Torrid One Piece Swimsuit

    Torrid

    One Piece Swimsuit
    Size 2X Plus
    $24.99
    51% 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 2X Plus
    $14.99
    60% off estimated retail
    Simply Fit One Piece Swimsuit (view 2)Simply Fit One Piece Swimsuit (view 1)
    View Product: Simply Fit One Piece Swimsuit

    Simply Fit

    One Piece Swimsuit
    Size 2X Plus
    $42.99
    62% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 2X Plus
    $10.99
    56% off estimated retail
    Freshwater Swimsuit Cover Up (view 2)Freshwater Swimsuit Cover Up (view 1)
    View Product: Freshwater Swimsuit Cover Up

    Freshwater

    Swimsuit Cover Up
    Size 2X Plus
    $34.99
    69% off estimated retail
    Marilyn Monroe Swimsuit Bottoms (view 2)Marilyn Monroe Swimsuit Bottoms (view 1)New With Tags
    View Product: Marilyn Monroe Swimsuit Bottoms

    Marilyn Monroe

    Swimsuit Bottoms
    Size 2X Plus
    $11.99
    52% off estimated retail
    Shein Swimsuit Bottoms (view 2)Shein Swimsuit Bottoms (view 1)
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size 3X Plus
    $12.99
    18% 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 2X Plus
    $14.99
    40% off estimated retail
    Adore Me Swimsuit Bottoms (view 2)Adore Me Swimsuit Bottoms (view 1)
    View Product: Adore Me Swimsuit Bottoms

    Adore Me

    Swimsuit Bottoms
    Size 2X Plus
    $16.99
    46% off estimated retail
    Adore Me Swimsuit Bottoms (view 2)Adore Me Swimsuit Bottoms (view 1)
    View Product: Adore Me Swimsuit Bottoms

    Adore Me

    Swimsuit Bottoms
    Size 2X Plus
    $11.99
    62% 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
    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
    Shein One Piece Swimsuit (view 2)Shein One Piece Swimsuit (view 1)
    View Product: Shein One Piece Swimsuit

    Shein

    One Piece Swimsuit
    Size 2X Plus
    $11.99
    50% off estimated retail
    Torrid One Piece Swimsuit (view 2)Torrid One Piece Swimsuit (view 1)
    View Product: Torrid One Piece Swimsuit

    Torrid

    One Piece Swimsuit
    Size 3X Plus
    $34.99
    53% off estimated retail
    Avenue Swimsuit Top (view 2)Avenue Swimsuit Top (view 1)
    View Product: Avenue Swimsuit Top

    Avenue

    Swimsuit Top
    Size 28 Plus
    $14.99
    53% off estimated retail
    Torrid Swimsuit Top (view 2)Torrid Swimsuit Top (view 1)
    View Product: Torrid Swimsuit Top

    Torrid

    Swimsuit Top
    Size 2X Plus
    $22.99
    54% off estimated retail
    Torrid Swimsuit Top (view 2)Torrid Swimsuit Top (view 1)
    View Product: Torrid Swimsuit Top

    Torrid

    Swimsuit Top
    Size 3X Plus
    $25.99
    49% off estimated retail
    Freshwater Swimsuit Bottoms (view 2)Freshwater Swimsuit Bottoms (view 1)
    View Product: Freshwater Swimsuit Bottoms

    Freshwater

    Swimsuit Bottoms
    Size 3X Plus
    $37.99
    50% 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
    Bal Harbour Swimsuit Bottoms (view 2)Bal Harbour Swimsuit Bottoms (view 1)New With Tags
    View Product: Bal Harbour Swimsuit Bottoms

    Bal Harbour

    Swimsuit Bottoms
    Size 2X Plus
    $17.99
    52% off estimated retail
    Lands' End Rash Guard (view 2)Lands' End Rash Guard (view 1)
    View Product: Lands' End Rash Guard

    Lands' End

    Rash Guard
    Size 3X Plus
    $28.99
    69% off estimated retail
    Assorted Brands One Piece Swimsuit (view 2)Assorted Brands One Piece Swimsuit (view 1)
    View Product: Assorted Brands One Piece Swimsuit

    Assorted Brands

    One Piece Swimsuit
    Size 3X Plus
    $16.99
    55% off estimated retail
    Coral Reef Swim One Piece Swimsuit (view 2)Coral Reef Swim One Piece Swimsuit (view 1)New With Tags
    View Product: Coral Reef Swim One Piece Swimsuit

    Coral Reef Swim

    One Piece Swimsuit
    Size 3X Plus
    $19.99
    47% off estimated retail
    Wild Fable Swimsuit Top (view 2)Wild Fable Swimsuit Top (view 1)
    View Product: Wild Fable Swimsuit Top

    Wild Fable

    Swimsuit Top
    Size 2X Plus
    $12.99
    18% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 3X Plus
    $11.99
    52% off estimated retail
    Torrid Swimsuit Top (view 2)Torrid Swimsuit Top (view 1)
    View Product: Torrid Swimsuit Top

    Torrid

    Swimsuit Top
    Size 2X Plus
    $22.99
    54% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 3X Plus
    $15.99
    36% off estimated retail
    Coco Swimsuit Bottoms (view 2)Coco Swimsuit Bottoms (view 1)
    View Product: Coco Swimsuit Bottoms

    Coco

    Swimsuit Bottoms
    Size 2X Plus
    Zaful Swimsuit Bottoms (view 2)Zaful Swimsuit Bottoms (view 1)
    View Product: Zaful Swimsuit Bottoms

    Zaful

    Swimsuit Bottoms
    Size 3X Plus
    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 3X Plus
    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 Bottoms (view 2)Shein Swimsuit Bottoms (view 1)
    View Product: Shein Swimsuit Bottoms

    Shein

    Swimsuit Bottoms
    Size 2X Plus

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