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.

425 items
Sort by:
    CLUB EXX Swimsuit Bottoms (view 2)CLUB EXX Swimsuit Bottoms (view 1)
    View Product: CLUB EXX Swimsuit Bottoms

    CLUB EXX

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

    Unbranded

    Swimsuit Bottoms
    Size 2X Plus
    $16.99
    32% 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 2X Plus
    $12.99
    48% 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 2X Plus
    $18.99
    50% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Freshwater Swimsuit Cover Up (view 2)Freshwater Swimsuit Cover Up (view 1)New With Tags
    View Product: Freshwater Swimsuit Cover Up

    Freshwater

    Swimsuit Cover Up
    Size 2X Plus
    $27.99
    46% 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 2X Plus
    $14.99
    60% off estimated retail
    Coral Reef Swim Swimsuit Top (view 2)Coral Reef Swim Swimsuit Top (view 1)
    View Product: Coral Reef Swim Swimsuit Top

    Coral Reef Swim

    Swimsuit Top
    Size 12
    $20.99
    16% off estimated retail
    Venus Swimsuit Top (view 2)Venus Swimsuit Top (view 1)
    View Product: Venus Swimsuit Top

    Venus

    Swimsuit Top
    Size 2X Plus
    $10.99
    42% off estimated retail
    Swim by Cacique Swimsuit Top (view 2)Swim by Cacique Swimsuit Top (view 1)
    View Product: Swim by Cacique Swimsuit Top

    Swim by Cacique

    Swimsuit Top
    Size 28 Plus
    $22.99
    54% off estimated retail
    Splash Swimsuit Cover Up (view 2)Splash Swimsuit Cover Up (view 1)
    View Product: Splash Swimsuit Cover Up

    Splash

    Swimsuit Cover Up
    Size 2X Plus
    $16.99
    55% off estimated retail
    Lands' End Swimsuit Top (view 2)Lands' End Swimsuit Top (view 1)
    View Product: Lands' End Swimsuit Top

    Lands' End

    Swimsuit Top
    Size 12
    $26.99
    57% off estimated retail
    Magicsuit One Piece Swimsuit (view 2)Magicsuit One Piece Swimsuit (view 1)
    View Product: Magicsuit One Piece Swimsuit

    Magicsuit

    One Piece Swimsuit
    Size 12
    $50.99
    55% off estimated retail
    Seafolly One Piece Swimsuit (view 2)Seafolly One Piece Swimsuit (view 1)New With Tags
    View Product: Seafolly One Piece Swimsuit

    Seafolly

    One Piece Swimsuit
    Size 12
    $46.99
    72% off estimated retail
    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
    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
    Wild Fable Swimsuit Top (view 2)Wild Fable Swimsuit Top (view 1)
    View Product: Wild Fable Swimsuit Top

    Wild Fable

    Swimsuit Top
    Size 12
    $10.99
    31% off estimated retail
    Jolyn One Piece Swimsuit (view 2)Jolyn One Piece Swimsuit (view 1)
    View Product: Jolyn One Piece Swimsuit

    Jolyn

    One Piece Swimsuit
    Size 28 Plus
    $26.99
    52% off estimated retail
    Bal Harbour One Piece Swimsuit (view 2)Bal Harbour One Piece Swimsuit (view 1)
    View Product: Bal Harbour One Piece Swimsuit

    Bal Harbour

    One Piece Swimsuit
    Size 12
    $27.99
    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
    $12.99
    18% off estimated retail
    Venus Swimsuit Bottoms (view 2)Venus Swimsuit Bottoms (view 1)New With Tags
    View Product: Venus Swimsuit Bottoms

    Venus

    Swimsuit Bottoms
    Size 12
    $11.99
    36% 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
    Ivory Rose Swimsuit Bottoms (view 2)Ivory Rose Swimsuit Bottoms (view 1)
    View Product: Ivory Rose Swimsuit Bottoms

    Ivory Rose

    Swimsuit Bottoms
    Size 12
    $14.99
    40% off estimated retail
    DressBarn Swimsuit Cover Up (view 2)DressBarn Swimsuit Cover Up (view 1)
    View Product: DressBarn Swimsuit Cover Up

    DressBarn

    Swimsuit Cover Up
    Size 2X Plus
    $16.99
    55% off estimated retail
    H&M Swimsuit Top (view 2)H&M Swimsuit Top (view 1)
    View Product: H&M Swimsuit Top

    H&M

    Swimsuit Top
    Size 12
    $15.99
    20% off estimated retail
    Speedo One Piece Swimsuit (view 2)Speedo One Piece Swimsuit (view 1)
    View Product: Speedo One Piece Swimsuit

    Speedo

    One Piece Swimsuit
    Size 12
    $46.99
    35% off estimated retail
    Maurices Swimsuit Top (view 2)Maurices Swimsuit Top (view 1)
    View Product: Maurices Swimsuit Top

    Maurices

    Swimsuit Top
    Size 2X Plus
    $14.99
    48% off estimated retail
    Lands' End Swimsuit Top (view 2)Lands' End Swimsuit Top (view 1)
    View Product: Lands' End Swimsuit Top

    Lands' End

    Swimsuit Top
    Size 12
    $21.99
    65% 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
    PrettyLittleThing Swimsuit Top (view 2)PrettyLittleThing Swimsuit Top (view 1)
    View Product: PrettyLittleThing Swimsuit Top

    PrettyLittleThing

    Swimsuit Top
    Size 12
    $10.99
    65% off estimated retail
    Zaful Swimsuit Top (view 2)Zaful Swimsuit Top (view 1)
    View Product: Zaful Swimsuit Top

    Zaful

    Swimsuit Top
    Size 12
    $14.99
    40% off estimated retail
    Zaful Swimsuit Bottoms (view 2)Zaful Swimsuit Bottoms (view 1)
    View Product: Zaful Swimsuit Bottoms

    Zaful

    Swimsuit Bottoms
    Size 12
    $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
    $14.99
    40% 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
    Seafolly Swimsuit Bottoms (view 2)Seafolly Swimsuit Bottoms (view 1)
    View Product: Seafolly Swimsuit Bottoms

    Seafolly

    Swimsuit Bottoms
    Size 12
    $28.99
    74% 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 12
    $18.99
    50% 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
    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
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 2X Plus
    $14.99
    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
    $9.99
    60% 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
    Nike Swimsuit Top (view 2)Nike Swimsuit Top (view 1)
    View Product: Nike Swimsuit Top

    Nike

    Swimsuit Top
    Size 12
    $24.99
    51% 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
    $10.99
    54% off estimated retail
    ZeroXposur Board Shorts (view 2)ZeroXposur Board Shorts (view 1)
    View Product: ZeroXposur Board Shorts

    ZeroXposur

    Board Shorts
    Size 12
    $16.99
    73% 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 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
    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
    Yitty Swimsuit Bottoms (view 2)Yitty Swimsuit Bottoms (view 1)New With Tags
    View Product: Yitty Swimsuit Bottoms

    Yitty

    Swimsuit Bottoms
    Size 2X Plus
    Kensie One Piece Swimsuit (view 2)Kensie One Piece Swimsuit (view 1)
    View Product: Kensie One Piece Swimsuit

    Kensie

    One Piece Swimsuit
    Size 2X Plus
    Nike Swimsuit Bottoms (view 2)Nike Swimsuit Bottoms (view 1)New With Tags
    View Product: Nike Swimsuit Bottoms

    Nike

    Swimsuit Bottoms
    Size 28 Plus
    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
    Drew One Piece Swimsuit (view 2)Drew One Piece Swimsuit (view 1)
    View Product: Drew One Piece Swimsuit

    Drew

    One Piece Swimsuit
    Size 28 Plus
    Beach House Swimsuit Top (view 2)Beach House Swimsuit Top (view 1)New With Tags
    View Product: Beach House Swimsuit Top

    Beach House

    Swimsuit Top
    Size 12
    $22.99
    67% off estimated retail
    oasis Swimsuit Bottoms (view 2)oasis Swimsuit Bottoms (view 1)New With Tags
    View Product: oasis Swimsuit Bottoms

    oasis

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

    Shein

    Swimsuit Bottoms
    Size 2X Plus

    Loading...