About
ThredUp LogoThredUp
Shop
SellCleanout animation
Beta
My ThredUp
Account
0
Check out

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.

PolyesterRemove filterRayonRemove filter
72 items
Sort by:
    Aqua Green One Piece Swimsuit (view 2)Aqua Green One Piece Swimsuit (view 1)New With Tags
    View Product: Aqua Green One Piece Swimsuit

    Aqua Green

    One Piece Swimsuit
    Size 18 Plus
    $29.99
    40% off estimated retail
    TYR One Piece Swimsuit (view 2)TYR One Piece Swimsuit (view 1)
    View Product: TYR One Piece Swimsuit

    TYR

    One Piece Swimsuit
    Size 18 Plus
    $25.99
    54% off estimated retail
    Wonder Nation Swimsuit Bottoms (view 2)Wonder Nation Swimsuit Bottoms (view 1)
    View Product: Wonder Nation Swimsuit Bottoms

    Wonder Nation

    Swimsuit Bottoms
    Size 18 Plus
    $10.99
    15% off estimated retail
    ASOS Two Piece Swimsuit (view 2)ASOS Two Piece Swimsuit (view 1)
    View Product: ASOS Two Piece Swimsuit

    ASOS

    Two Piece Swimsuit
    Size 18 Plus
    $20.99
    56% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    ELOQUII One Piece Swimsuit (view 2)ELOQUII One Piece Swimsuit (view 1)
    View Product: ELOQUII One Piece Swimsuit

    ELOQUII

    One Piece Swimsuit
    Size 18 Plus
    $26.99
    64% off estimated retail
    ELOQUII Swimsuit Bottoms (view 2)ELOQUII Swimsuit Bottoms (view 1)New With Tags
    View Product: ELOQUII Swimsuit Bottoms

    ELOQUII

    Swimsuit Bottoms
    Size 18 Plus
    $23.99
    52% off estimated retail
    Elomi Swimsuit Bottoms (view 2)Elomi Swimsuit Bottoms (view 1)New With Tags
    View Product: Elomi Swimsuit Bottoms

    Elomi

    Swimsuit Bottoms
    Size 18 Plus
    $28.99
    71% off estimated retail
    Swim by Cacique Swimsuit Bottoms (view 2)Swim by Cacique Swimsuit Bottoms (view 1)
    View Product: Swim by Cacique Swimsuit Bottoms

    Swim by Cacique

    Swimsuit Bottoms
    Size 18 Plus
    $19.99
    60% off estimated retail
    Swim by Cacique Swimsuit Bottoms (view 2)Swim by Cacique Swimsuit Bottoms (view 1)
    View Product: Swim by Cacique Swimsuit Bottoms

    Swim by Cacique

    Swimsuit Bottoms
    Size 24 Plus
    $18.99
    62% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 24 Plus
    $14.99
    40% off estimated retail
    Adidas One Piece Swimsuit (view 2)Adidas One Piece Swimsuit (view 1)New With Tags
    View Product: Adidas One Piece Swimsuit

    Adidas

    One Piece Swimsuit
    Size 24 Plus
    $29.99
    60% off estimated retail
    Girl Howdy One Piece Swimsuit (view 2)Girl Howdy One Piece Swimsuit (view 1)
    View Product: Girl Howdy One Piece Swimsuit

    Girl Howdy

    One Piece Swimsuit
    Size 18 Plus
    $34.99
    53% 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 24 Plus
    $38.99
    46% off estimated retail
    Lauren by Ralph Lauren Swimsuit Top (view 2)Lauren by Ralph Lauren Swimsuit Top (view 1)
    View Product: Lauren by Ralph Lauren Swimsuit Top

    Lauren by Ralph Lauren

    Swimsuit Top
    Size 18 Plus
    $20.99
    70% off estimated retail
    Jaclyn Smith Swimsuit Top (view 2)Jaclyn Smith Swimsuit Top (view 1)
    View Product: Jaclyn Smith Swimsuit Top

    Jaclyn Smith

    Swimsuit Top
    Size 18 Plus
    $7.99
    38% off estimated retail
    City Chic Swimsuit Top (view 2)City Chic Swimsuit Top (view 1)
    View Product: City Chic Swimsuit Top

    City Chic

    Swimsuit Top
    Size 18 Plus
    $24.99
    60% off estimated retail
    TYR One Piece Swimsuit (view 2)TYR One Piece Swimsuit (view 1)
    View Product: TYR One Piece Swimsuit

    TYR

    One Piece Swimsuit
    Size 18 Plus
    $27.99
    50% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 18 Plus
    $14.99
    40% off estimated retail
    XXI Swimsuit Bottoms (view 2)XXI Swimsuit Bottoms (view 1)New With Tags
    View Product: XXI Swimsuit Bottoms

    XXI

    Swimsuit Bottoms
    Size 18 Plus
    $10.99
    31% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 18 Plus
    $10.99
    56% off estimated retail
    Cherokee One Piece Swimsuit (view 2)Cherokee One Piece Swimsuit (view 1)
    View Product: Cherokee One Piece Swimsuit

    Cherokee

    One Piece Swimsuit
    Size 18 Plus
    $13.99 $11.19 20% off with code THANKU
    26% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $18.99 $11.39 40% off with code THANKU
    50% off estimated retail
    Swim by Cacique Swimsuit Cover Up (view 2)Swim by Cacique Swimsuit Cover Up (view 1)
    View Product: Swim by Cacique Swimsuit Cover Up

    Swim by Cacique

    Swimsuit Cover Up
    Size 18 Plus
    $27.99 $14.00 50% off with code THANKU
    63% off estimated retail
    Swim by Cacique Swimsuit Cover Up (view 2)Swim by Cacique Swimsuit Cover Up (view 1)
    View Product: Swim by Cacique Swimsuit Cover Up

    Swim by Cacique

    Swimsuit Cover Up
    Size 18 Plus
    $25.99 $13.00 50% off with code THANKU
    65% 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 18 Plus
    $16.99 $11.89 30% off with code THANKU
    55% off estimated retail
    Beach Party Swimwear Swimsuit Bottoms (view 2)Beach Party Swimwear Swimsuit Bottoms (view 1)New With Tags
    View Product: Beach Party Swimwear Swimsuit Bottoms

    Beach Party Swimwear

    Swimsuit Bottoms
    Size 18 Plus
    $10.99 $8.79 20% off with code THANKU
    45% 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 24 Plus
    $23.99 $14.39 40% off with code THANKU
    52% 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 24 Plus
    $26.99 $16.19 40% off with code THANKU
    57% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $19.99 $10.99 45% off with code THANKU
    47% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 18 Plus
    $14.99 $8.99 40% off with code THANKU
    60% off estimated retail
    Lands' End Swimsuit Bottoms (view 2)Lands' End Swimsuit Bottoms (view 1)
    View Product: Lands' End Swimsuit Bottoms

    Lands' End

    Swimsuit Bottoms
    Size 18 Plus
    $20.99 $10.50 50% off with code THANKU
    67% 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 24 Plus
    $19.99 $10.99 45% off with code THANKU
    47% off estimated retail
    Elomi One Piece Swimsuit (view 2)Elomi One Piece Swimsuit (view 1)
    View Product: Elomi One Piece Swimsuit

    Elomi

    One Piece Swimsuit
    Size 18 Plus
    $48.99 $39.19 20% off with code THANKU
    67% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 18 Plus
    $15.99 $11.19 30% off with code THANKU
    36% off estimated retail
    South Beach Swimsuit Top (view 2)South Beach Swimsuit Top (view 1)
    View Product: South Beach Swimsuit Top

    South Beach

    Swimsuit Top
    Size 18 Plus
    $11.99 $9.59 20% off with code THANKU
    25% off estimated retail
    Maxine of Hollywood One Piece Swimsuit (view 2)Maxine of Hollywood One Piece Swimsuit (view 1)
    View Product: Maxine of Hollywood One Piece Swimsuit

    Maxine of Hollywood

    One Piece Swimsuit
    Size 24 Plus
    $31.99 $17.59 45% off with code THANKU
    57% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 18 Plus
    $12.99 $7.79 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 18 Plus
    $8.99 $7.19 20% off with code THANKU
    43% off estimated retail
    Birdsong Swimsuit Bottoms (view 2)Birdsong Swimsuit Bottoms (view 1)
    View Product: Birdsong Swimsuit Bottoms

    Birdsong

    Swimsuit Bottoms
    Size 18 Plus
    $32.99 $21.44 35% off with code THANKU
    67% off estimated retail
    Birdsong Swimsuit Bottoms (view 2)Birdsong Swimsuit Bottoms (view 1)New With Tags
    View Product: Birdsong Swimsuit Bottoms

    Birdsong

    Swimsuit Bottoms
    Size 18 Plus
    $32.99 $21.44 35% off with code THANKU
    67% off estimated retail
    Kona Sol One Piece Swimsuit (view 2)Kona Sol One Piece Swimsuit (view 1)
    View Product: Kona Sol One Piece Swimsuit

    Kona Sol

    One Piece Swimsuit
    Size 18 Plus
    $22.99
    39% off estimated retail
    Assorted Brands Swimsuit Top (view 2)Assorted Brands Swimsuit Top (view 1)New With Tags
    View Product: Assorted Brands Swimsuit Top

    Assorted Brands

    Swimsuit Top
    Size 18 Plus
    $16.99 $8.50 50% off with code THANKU
    32% off estimated retail
    Rose Gal Swimsuit Bottoms (view 2)Rose Gal Swimsuit Bottoms (view 1)
    View Product: Rose Gal Swimsuit Bottoms

    Rose Gal

    Swimsuit Bottoms
    Size 18 Plus
    $11.99 $8.99 25% off with code THANKU
    52% off estimated retail
    Clean Water Swimsuit Top (view 2)Clean Water Swimsuit Top (view 1)
    View Product: Clean Water Swimsuit Top

    Clean Water

    Swimsuit Top
    Size 18 Plus
    $9.99 $7.99 20% off with code THANKU
    37% off estimated retail
    Beach House Swimsuit Bottoms (view 2)Beach House Swimsuit Bottoms (view 1)New With Tags
    View Product: Beach House Swimsuit Bottoms

    Beach House

    Swimsuit Bottoms
    Size 24 Plus
    $28.99 $18.84 35% off with code THANKU
    43% 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 24 Plus
    $35.99 $16.20 55% off with code THANKU
    50% 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 18 Plus
    $13.99 $9.09 35% off with code THANKU
    44% off estimated retail
    PrettyLittleThing Swimsuit Bottoms (view 2)PrettyLittleThing Swimsuit Bottoms (view 1)New With Tags
    View Product: PrettyLittleThing Swimsuit Bottoms

    PrettyLittleThing

    Swimsuit Bottoms
    Size 18 Plus
    $11.99 $9.59 20% off with code THANKU
    62% off estimated retail
    Swim by Cacique Swimsuit Bottoms (view 2)Swim by Cacique Swimsuit Bottoms (view 1)
    View Product: Swim by Cacique Swimsuit Bottoms

    Swim by Cacique

    Swimsuit Bottoms
    Size 24 Plus
    $23.99 $10.80 55% off with code THANKU
    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 18 Plus
    $15.99 $10.39 35% off with code THANKU
    36% off estimated retail
    Nasty Gal Inc. Swimsuit Top (view 2)Nasty Gal Inc. Swimsuit Top (view 1)
    View Product: Nasty Gal Inc. Swimsuit Top

    Nasty Gal Inc.

    Swimsuit Top
    Size 18 Plus
    $31.99 $20.79 35% off with code THANKU
    57% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)Price Drop
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 18 Plus
    $10.99 $7.69 30% off with code THANKU
    56% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 24 Plus
    $11.99 $8.39 30% off with code THANKU
    52% off estimated retail
    Missguided Swimsuit Bottoms (view 2)Missguided Swimsuit Bottoms (view 1)
    View Product: Missguided Swimsuit Bottoms

    Missguided

    Swimsuit Bottoms
    Size 18 Plus
    $6.99 $5.59 20% off with code THANKU
    56% off estimated retail
    Swimsuits for all Swimsuit Top (view 2)Swimsuits for all Swimsuit Top (view 1)
    View Product: Swimsuits for all Swimsuit Top

    Swimsuits for all

    Swimsuit Top
    Size 18 Plus
    $15.99 $8.79 45% off with code THANKU
    57% off estimated retail
    Fortune Swimwear Swimsuit Bottoms (view 2)Fortune Swimwear Swimsuit Bottoms (view 1)
    View Product: Fortune Swimwear Swimsuit Bottoms

    Fortune Swimwear

    Swimsuit Bottoms
    Size 18 Plus
    $17.99 $12.59 30% off with code THANKU
    28% off estimated retail
    Swim by Cacique Swimsuit Cover Up (view 2)Swim by Cacique Swimsuit Cover Up (view 1)
    View Product: Swim by Cacique Swimsuit Cover Up

    Swim by Cacique

    Swimsuit Cover Up
    Size 18 Plus
    $28.99 $11.60 60% off with code THANKU
    61% off estimated retail
    Jamaica Bay Swimsuit Top (view 2)Jamaica Bay Swimsuit Top (view 1)Price Drop
    View Product: Jamaica Bay Swimsuit Top

    Jamaica Bay

    Swimsuit Top
    Size 18 Plus
    $13.99 $11.19 20% off with code THANKU
    26% off estimated retail
    Swimsuits for all Swimsuit Cover Up (view 2)Swimsuits for all Swimsuit Cover Up (view 1)Price Drop
    View Product: Swimsuits for all Swimsuit Cover Up

    Swimsuits for all

    Swimsuit Cover Up
    Size 18 Plus
    $16.99 $8.50 50% off with code THANKU
    70% off estimated retail
    Boohoo Swimsuit Top (view 2)Boohoo Swimsuit Top (view 1)New With Tags
    View Product: Boohoo Swimsuit Top

    Boohoo

    Swimsuit Top
    Size 24 Plus
    $13.99 $10.49 25% off with code THANKU
    56% off estimated retail
    Rosegal Swimsuit Bottoms (view 2)Rosegal Swimsuit Bottoms (view 1)Price Drop
    View Product: Rosegal Swimsuit Bottoms

    Rosegal

    Swimsuit Bottoms
    Size 24 Plus
    $11.99 $7.79 35% off with code THANKU
    52% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)Price Drop
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 24 Plus
    $11.99 $8.39 30% off with code THANKU
    52% off estimated retail
    PrettyLittleThing Swimsuit Bottoms (view 2)PrettyLittleThing Swimsuit Bottoms (view 1)New With Tags
    View Product: PrettyLittleThing Swimsuit Bottoms

    PrettyLittleThing

    Swimsuit Bottoms
    Size 24 Plus
    $10.99 $8.79 20% off with code THANKU
    65% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $8.99 $6.29 30% off with code THANKU
    76% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $8.99 $6.29 30% off with code THANKU
    76% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $8.99 $6.29 30% off with code THANKU
    76% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $7.99 $6.39 20% off with code THANKU
    78% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $8.99 $6.29 30% off with code THANKU
    76% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $8.99 $6.29 30% off with code THANKU
    76% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $8.99 $6.29 30% off with code THANKU
    76% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $8.99 $6.29 30% off with code THANKU
    76% off estimated retail
    Swimsuits for all Swimsuit Bottoms (view 2)Swimsuits for all Swimsuit Bottoms (view 1)New With Tags
    View Product: Swimsuits for all Swimsuit Bottoms

    Swimsuits for all

    Swimsuit Bottoms
    Size 24 Plus
    $8.99 $6.29 30% off with code THANKU
    76% off estimated retail
    Back
    1
    Next

    Loading...