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.

462 items
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    Aqua Green Swimsuit Bottoms (view 2)Aqua Green Swimsuit Bottoms (view 1)
    View Product: Aqua Green Swimsuit Bottoms

    Aqua Green

    Swimsuit Bottoms
    Size 16
    $13.99
    44% 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 16
    $26.99
    57% off estimated retail
    L.L.Bean Swimsuit Top (view 2)L.L.Bean Swimsuit Top (view 1)
    View Product: L.L.Bean Swimsuit Top

    L.L.Bean

    Swimsuit Top
    Size 16
    $16.99
    46% 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 16
    $26.99
    57% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Style Swimsuit Top (view 2)Style Swimsuit Top (view 1)
    View Product: Style Swimsuit Top

    Style

    Swimsuit Top
    Size 16
    $9.99
    47% off estimated retail
    Anne Cole One Piece Swimsuit (view 2)Anne Cole One Piece Swimsuit (view 1)
    View Product: Anne Cole One Piece Swimsuit

    Anne Cole

    One Piece Swimsuit
    Size 16
    $35.99
    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 16
    $23.99
    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 16
    $24.99
    51% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 16
    $13.99
    44% off estimated retail
    Cazimi Swimwear Swimsuit Bottoms (view 2)Cazimi Swimwear Swimsuit Bottoms (view 1)
    View Product: Cazimi Swimwear Swimsuit Bottoms

    Cazimi Swimwear

    Swimsuit Bottoms
    Size 16
    $14.99
    40% off estimated retail
    Krista Swimsuit Bottoms (view 2)Krista Swimsuit Bottoms (view 1)
    View Product: Krista Swimsuit Bottoms

    Krista

    Swimsuit Bottoms
    Size 16
    $10.99
    31% 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 16
    $26.99
    65% 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 16
    $29.99
    57% 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 16
    $22.99
    64% off estimated retail
    Swimsuits for all Board Shorts (view 2)Swimsuits for all Board Shorts (view 1)
    View Product: Swimsuits for all Board Shorts

    Swimsuits for all

    Board Shorts
    Size 16
    $22.99
    50% 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 16
    $22.99
    64% 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 16
    $23.99
    62% 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 16
    $12.99
    35% off estimated retail
    Anne Cole Swimsuit Cover Up (view 2)Anne Cole Swimsuit Cover Up (view 1)
    View Product: Anne Cole Swimsuit Cover Up

    Anne Cole

    Swimsuit Cover Up
    Size 16
    $38.99
    48% off estimated retail
    La Blanca Swimsuit Top (view 2)La Blanca Swimsuit Top (view 1)
    View Product: La Blanca Swimsuit Top

    La Blanca

    Swimsuit Top
    Size 16
    $18.99
    50% off estimated retail
    Ava & Viv Swimsuit Top (view 2)Ava & Viv Swimsuit Top (view 1)
    View Product: Ava & Viv Swimsuit Top

    Ava & Viv

    Swimsuit Top
    Size 16
    $15.99
    46% off estimated retail
    Ava & Viv Swimsuit Top (view 2)Ava & Viv Swimsuit Top (view 1)
    View Product: Ava & Viv Swimsuit Top

    Ava & Viv

    Swimsuit Top
    Size 16
    $20.99
    30% off estimated retail
    Lands' End One Piece Swimsuit (view 2)Lands' End One Piece Swimsuit (view 1)
    View Product: Lands' End One Piece Swimsuit

    Lands' End

    One Piece Swimsuit
    Size 16
    $35.99
    62% off estimated retail
    Lauren by Ralph Lauren One Piece Swimsuit (view 2)Lauren by Ralph Lauren One Piece Swimsuit (view 1)
    View Product: Lauren by Ralph Lauren One Piece Swimsuit

    Lauren by Ralph Lauren

    One Piece Swimsuit
    Size 16
    $44.99
    65% 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 16
    $42.99
    41% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 16
    $9.99
    60% 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 16
    $23.99
    62% off estimated retail
    Calia by Carrie Underwood One Piece Swimsuit (view 2)Calia by Carrie Underwood One Piece Swimsuit (view 1)
    View Product: Calia by Carrie Underwood One Piece Swimsuit

    Calia by Carrie Underwood

    One Piece Swimsuit
    Size 16
    $18.99
    60% off estimated retail
    Jantzen One Piece Swimsuit (view 2)Jantzen One Piece Swimsuit (view 1)
    View Product: Jantzen One Piece Swimsuit

    Jantzen

    One Piece Swimsuit
    Size 16
    $26.99
    61% off estimated retail
    Ava & Viv Swimsuit Bottoms (view 2)Ava & Viv Swimsuit Bottoms (view 1)
    View Product: Ava & Viv Swimsuit Bottoms

    Ava & Viv

    Swimsuit Bottoms
    Size 16
    $14.99
    40% off estimated retail
    La Blanca One Piece Swimsuit (view 2)La Blanca One Piece Swimsuit (view 1)
    View Product: La Blanca One Piece Swimsuit

    La Blanca

    One Piece Swimsuit
    Size 16
    $27.99
    59% off estimated retail
    Miraclesuit Swimsuit Top (view 2)Miraclesuit Swimsuit Top (view 1)
    View Product: Miraclesuit Swimsuit Top

    Miraclesuit

    Swimsuit Top
    Size 16
    $31.99
    57% 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
    Magicsuit Swimsuit Bottoms (view 2)Magicsuit Swimsuit Bottoms (view 1)
    View Product: Magicsuit Swimsuit Bottoms

    Magicsuit

    Swimsuit Bottoms
    Size 16
    $35.99
    61% off estimated retail
    Hilor Swimsuit Bottoms (view 2)Hilor Swimsuit Bottoms (view 1)
    View Product: Hilor Swimsuit Bottoms

    Hilor

    Swimsuit Bottoms
    Size 16
    $12.99
    42% off estimated retail
    Caribbean Joe Swimsuit Top (view 2)Caribbean Joe Swimsuit Top (view 1)
    View Product: Caribbean Joe Swimsuit Top

    Caribbean Joe

    Swimsuit Top
    Size 16
    $10.99
    47% off estimated retail
    Nike Swimsuit Top (view 2)Nike Swimsuit Top (view 1)
    View Product: Nike Swimsuit Top

    Nike

    Swimsuit Top
    Size 16
    $28.99
    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 16
    $25.99
    67% off estimated retail
    La Blanca One Piece Swimsuit (view 2)La Blanca One Piece Swimsuit (view 1)
    View Product: La Blanca One Piece Swimsuit

    La Blanca

    One Piece Swimsuit
    Size 16
    $32.99
    52% off estimated retail
    Seekers Australia One Piece Swimsuit (view 2)Seekers Australia One Piece Swimsuit (view 1)
    View Product: Seekers Australia One Piece Swimsuit

    Seekers Australia

    One Piece Swimsuit
    Size 16
    $24.99
    54% off estimated retail
    Robby Lens Swimwear One Piece Swimsuit (view 2)Robby Lens Swimwear One Piece Swimsuit (view 1)
    View Product: Robby Lens Swimwear One Piece Swimsuit

    Robby Lens Swimwear

    One Piece Swimsuit
    Size 16
    $27.99
    56% off estimated retail
    Beach Lingo Two Piece Swimsuit (view 2)Beach Lingo Two Piece Swimsuit (view 1)
    View Product: Beach Lingo Two Piece Swimsuit

    Beach Lingo

    Two Piece Swimsuit
    Size 16
    $12.99
    36% 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
    Volcom One Piece Swimsuit (view 2)Volcom One Piece Swimsuit (view 1)
    View Product: Volcom One Piece Swimsuit

    Volcom

    One Piece Swimsuit
    Size 16
    $25.99
    44% 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
    Maxine One Piece Swimsuit (view 2)Maxine One Piece Swimsuit (view 1)
    View Product: Maxine One Piece Swimsuit

    Maxine

    One Piece Swimsuit
    Size 16
    $22.99
    34% off estimated retail
    Lands' End Swimsuit Cover Up (view 2)Lands' End Swimsuit Cover Up (view 1)
    View Product: Lands' End Swimsuit Cover Up

    Lands' End

    Swimsuit Cover Up
    Size 16 Tall
    $32.99
    57% off estimated retail
    Target Swimsuit Top (view 2)Target Swimsuit Top (view 1)
    View Product: Target Swimsuit Top

    Target

    Swimsuit Top
    Size 16
    $7.99
    46% off estimated retail
    J.Crew One Piece Swimsuit (view 2)J.Crew One Piece Swimsuit (view 1)New With Tags
    View Product: J.Crew One Piece Swimsuit

    J.Crew

    One Piece Swimsuit
    Size 16
    $38.99
    75% off estimated retail
    South Beach One Piece Swimsuit (view 2)South Beach One Piece Swimsuit (view 1)
    View Product: South Beach One Piece Swimsuit

    South Beach

    One Piece Swimsuit
    Size 16
    $21.99
    43% off estimated retail
    Beach House Swimsuit Top (view 2)Beach House Swimsuit Top (view 1)
    View Product: Beach House Swimsuit Top

    Beach House

    Swimsuit Top
    Size 16
    $32.99
    47% off estimated retail
    Kona Sol One Piece Swimsuit (view 2)Kona Sol One Piece Swimsuit (view 1)New With Tags
    View Product: Kona Sol One Piece Swimsuit

    Kona Sol

    One Piece Swimsuit
    Size 16
    $24.99
    37% off estimated retail
    Chaps Swimsuit Bottoms (view 2)Chaps Swimsuit Bottoms (view 1)New With Tags
    View Product: Chaps Swimsuit Bottoms

    Chaps

    Swimsuit Bottoms
    Size 16
    $12.99
    56% off estimated retail
    Vanishing Act Swimsuit Top (view 2)Vanishing Act Swimsuit Top (view 1)New With Tags
    View Product: Vanishing Act Swimsuit Top

    Vanishing Act

    Swimsuit Top
    Size 16
    $27.99
    63% off estimated retail
    Nip Tuck Swim Swimsuit Bottoms (view 2)Nip Tuck Swim Swimsuit Bottoms (view 1)
    View Product: Nip Tuck Swim Swimsuit Bottoms

    Nip Tuck Swim

    Swimsuit Bottoms
    Size 16
    $12.99
    56% 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 16
    $27.99
    64% off estimated retail
    Venus Swimsuit Top (view 2)Venus Swimsuit Top (view 1)
    View Product: Venus Swimsuit Top

    Venus

    Swimsuit Top
    Size 16
    $8.99
    57% off estimated retail
    Jantzen One Piece Swimsuit (view 2)Jantzen One Piece Swimsuit (view 1)
    View Product: Jantzen One Piece Swimsuit

    Jantzen

    One Piece Swimsuit
    Size 16
    $28.99
    57% off estimated retail
    L.L.Bean Swimsuit Top (view 2)L.L.Bean Swimsuit Top (view 1)
    View Product: L.L.Bean Swimsuit Top

    L.L.Bean

    Swimsuit Top
    Size 16 Tall
    $23.99
    58% 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 16
    $26.99
    65% off estimated retail
    Jantzen One Piece Swimsuit (view 2)Jantzen One Piece Swimsuit (view 1)
    View Product: Jantzen One Piece Swimsuit

    Jantzen

    One Piece Swimsuit
    Size 16
    $31.99
    54% 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 16
    $25.99
    67% 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 16
    $30.99
    60% 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 16
    $33.99
    56% 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 16
    $31.99
    59% off estimated retail
    Tabitha Brown for Target One Piece Swimsuit (view 2)Tabitha Brown for Target One Piece Swimsuit (view 1)
    View Product: Tabitha Brown for Target One Piece Swimsuit

    Tabitha Brown for Target

    One Piece Swimsuit
    Size 16
    $24.99
    37% off estimated retail
    Xhilaration Swimsuit Top (view 2)Xhilaration Swimsuit Top (view 1)New With Tags
    View Product: Xhilaration Swimsuit Top

    Xhilaration

    Swimsuit Top
    Size 16
    $17.99
    34% off estimated retail
    Jantzen One Piece Swimsuit (view 2)Jantzen One Piece Swimsuit (view 1)
    View Product: Jantzen One Piece Swimsuit

    Jantzen

    One Piece Swimsuit
    Size 16
    $23.99
    57% 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 16
    $31.99
    31% off estimated retail
    Venus Swimsuit Bottoms (view 2)Venus Swimsuit Bottoms (view 1)
    View Product: Venus Swimsuit Bottoms

    Venus

    Swimsuit Bottoms
    Size 16
    $16.99
    26% 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 16 Plus
    $26.99
    65% 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 16
    $26.99
    65% off estimated retail
    Lands' End One Piece Swimsuit (view 2)Lands' End One Piece Swimsuit (view 1)
    View Product: Lands' End One Piece Swimsuit

    Lands' End

    One Piece Swimsuit
    Size 16
    $33.99
    70% off estimated retail
    Lands' End Swimsuit Top (view 2)Lands' End Swimsuit Top (view 1)Flawed Gem
    View Product: Lands' End Swimsuit Top

    Lands' End

    Swimsuit Top
    Size 16
    $32.99
    57% 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 16
    $30.99
    59% off estimated retail
    Speedo One Piece Swimsuit (view 2)Speedo One Piece Swimsuit (view 1)New With Tags
    View Product: Speedo One Piece Swimsuit

    Speedo

    One Piece Swimsuit
    Size 28 Plus
    $31.99
    62% off estimated retail
    Gerry Swimsuit Top (view 2)Gerry Swimsuit Top (view 1)
    View Product: Gerry Swimsuit Top

    Gerry

    Swimsuit Top
    Size 16
    $22.99
    62% off estimated retail
    La Blanca Swimsuit Bottoms (view 2)La Blanca Swimsuit Bottoms (view 1)
    View Product: La Blanca Swimsuit Bottoms

    La Blanca

    Swimsuit Bottoms
    Size 16
    $16.99
    63% off estimated retail
    Lands' End One Piece Swimsuit (view 2)Lands' End One Piece Swimsuit (view 1)
    View Product: Lands' End One Piece Swimsuit

    Lands' End

    One Piece Swimsuit
    Size 16
    $32.99
    71% off estimated retail
    Lands' End Swimsuit Top (view 2)Lands' End Swimsuit Top (view 1)New With Tags
    View Product: Lands' End Swimsuit Top

    Lands' End

    Swimsuit Top
    Size 16
    $32.99
    57% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size 16
    $11.99
    60% off estimated retail
    Free Country Swimsuit Top (view 2)Free Country Swimsuit Top (view 1)
    View Product: Free Country Swimsuit Top

    Free Country

    Swimsuit Top
    Size 16
    $16.99
    44% 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 16
    $25.99
    44% off estimated retail

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