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.

1,178 items
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    Shein Swimsuit Top (view 2)Shein Swimsuit Top (view 1)
    View Product: Shein Swimsuit Top

    Shein

    Swimsuit Top
    Size 0X Plus
    $13.99
    12% off estimated retail
    Carve Designs Swimsuit Top (view 2)Carve Designs Swimsuit Top (view 1)
    View Product: Carve Designs Swimsuit Top

    Carve Designs

    Swimsuit Top
    Size Med
    $18.99
    40% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size Med
    $12.99
    48% off estimated retail
    Maaji Swimsuit Top (view 2)Maaji Swimsuit Top (view 1)
    View Product: Maaji Swimsuit Top

    Maaji

    Swimsuit Top
    Size 10
    $29.99
    66% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Stone Fox Two Piece Swimsuit (view 2)Stone Fox Two Piece Swimsuit (view 1)
    View Product: Stone Fox Two Piece Swimsuit

    Stone Fox

    Two Piece Swimsuit
    Size Med
    $35.99
    76% off estimated retail
    Aerie Swimsuit Bottoms (view 2)Aerie Swimsuit Bottoms (view 1)
    View Product: Aerie Swimsuit Bottoms

    Aerie

    Swimsuit Bottoms
    Size Sm
    $11.99
    52% off estimated retail
    La Perla Swimsuit Top (view 2)La Perla Swimsuit Top (view 1)
    View Product: La Perla Swimsuit Top

    La Perla

    Swimsuit Top
    Size 44 italian
    $66.99
    78% off estimated retail
    J.Crew One Piece Swimsuit (view 2)J.Crew One Piece Swimsuit (view 1)
    View Product: J.Crew One Piece Swimsuit

    J.Crew

    One Piece Swimsuit
    Size 14
    $25.99
    79% off estimated retail
    Out From Under One Piece Swimsuit (view 2)Out From Under One Piece Swimsuit (view 1)
    View Product: Out From Under One Piece Swimsuit

    Out From Under

    One Piece Swimsuit
    Size Sm
    $20.99
    63% off estimated retail
    Bromelia Swimwear One Piece Swimsuit (view 2)Bromelia Swimwear One Piece Swimsuit (view 1)
    View Product: Bromelia Swimwear One Piece Swimsuit

    Bromelia Swimwear

    One Piece Swimsuit
    Size XL
    $65.99
    69% off estimated retail
    Xhilaration One Piece Swimsuit (view 2)Xhilaration One Piece Swimsuit (view 1)
    View Product: Xhilaration One Piece Swimsuit

    Xhilaration

    One Piece Swimsuit
    Size Med
    $17.99 $19
    Tavik Swimsuit Top (view 2)Tavik Swimsuit Top (view 1)
    View Product: Tavik Swimsuit Top

    Tavik

    Swimsuit Top
    Size Sm
    $10.99
    56% off estimated retail
    Aerie Swimsuit Bottoms (view 2)Aerie Swimsuit Bottoms (view 1)
    View Product: Aerie Swimsuit Bottoms

    Aerie

    Swimsuit Bottoms
    Size Sm
    $10.99
    56% off estimated retail
    Aerie Swimsuit Top (view 2)Aerie Swimsuit Top (view 1)
    View Product: Aerie Swimsuit Top

    Aerie

    Swimsuit Top
    Size Med
    $10.99
    56% off estimated retail
    Cupshe Swimsuit Top (view 2)Cupshe Swimsuit Top (view 1)
    View Product: Cupshe Swimsuit Top

    Cupshe

    Swimsuit Top
    Size Med
    $11.99
    36% off estimated retail
    Serei Swim Two Piece Swimsuit (view 2)Serei Swim Two Piece Swimsuit (view 1)New With Tags
    View Product: Serei Swim Two Piece Swimsuit

    Serei Swim

    Two Piece Swimsuit
    Size Med
    $29.99
    60% off estimated retail
    H&M Swimsuit Bottoms (view 2)H&M Swimsuit Bottoms (view 1)
    View Product: H&M Swimsuit Bottoms

    H&M

    Swimsuit Bottoms
    Size 12
    $9.99
    28% 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 6
    $28.99
    49% 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 Sm
    $17.99
    52% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size Lg
    $9.99
    60% 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 0
    $20.99
    34% off estimated retail
    Shade & Shore Two Piece Swimsuit (view 2)Shade & Shore Two Piece Swimsuit (view 1)
    View Product: Shade & Shore Two Piece Swimsuit

    Shade & Shore

    Two Piece Swimsuit
    Size Sm
    $12.99
    35% 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 Lg
    $14.99
    40% off estimated retail
    Aerie Swimsuit Bottoms (view 2)Aerie Swimsuit Bottoms (view 1)
    View Product: Aerie Swimsuit Bottoms

    Aerie

    Swimsuit Bottoms
    Size Lg
    $15.99
    36% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size Med
    $9.99
    60% off estimated retail
    Fabletics Swimsuit Bottoms (view 2)Fabletics Swimsuit Bottoms (view 1)New With Tags
    View Product: Fabletics Swimsuit Bottoms

    Fabletics

    Swimsuit Bottoms
    Size Sm
    $21.99
    44% off estimated retail
    SKYE Swimsuit Top (view 2)SKYE Swimsuit Top (view 1)
    View Product: SKYE Swimsuit Top

    SKYE

    Swimsuit Top
    Size Sm
    $27.99
    75% off estimated retail
    Forever 21 One Piece Swimsuit (view 2)Forever 21 One Piece Swimsuit (view 1)
    View Product: Forever 21 One Piece Swimsuit

    Forever 21

    One Piece Swimsuit
    Size Sm
    $14.99
    40% off estimated retail
    Roxy Swimsuit Top (view 2)Roxy Swimsuit Top (view 1)
    View Product: Roxy Swimsuit Top

    Roxy

    Swimsuit Top
    Size Med
    $11.99
    52% off estimated retail
    Forever 21 Swimsuit Top (view 2)Forever 21 Swimsuit Top (view 1)
    View Product: Forever 21 Swimsuit Top

    Forever 21

    Swimsuit Top
    Size Lg
    $13.99
    30% off estimated retail
    Shade & Shore Swimsuit Bottoms (view 2)Shade & Shore Swimsuit Bottoms (view 1)
    View Product: Shade & Shore Swimsuit Bottoms

    Shade & Shore

    Swimsuit Bottoms
    Size Med
    $10.99
    65% off estimated retail
    Fresh Produce Swimsuit Cover Up (view 2)Fresh Produce Swimsuit Cover Up (view 1)Flawed Gem
    View Product: Fresh Produce Swimsuit Cover Up

    Fresh Produce

    Swimsuit Cover Up
    Size Lg
    $14.99
    73% 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 8
    $30.99
    67% off estimated retail
    Zaful Swimsuit Top (view 2)Zaful Swimsuit Top (view 1)
    View Product: Zaful Swimsuit Top

    Zaful

    Swimsuit Top
    Size 6
    $10.99
    56% off estimated retail
    Babaton One Piece Swimsuit (view 2)Babaton One Piece Swimsuit (view 1)
    View Product: Babaton One Piece Swimsuit

    Babaton

    One Piece Swimsuit
    Size XXS
    $30.99
    68% off estimated retail
    Unbranded Swimsuit Top (view 2)Unbranded Swimsuit Top (view 1)
    View Product: Unbranded Swimsuit Top

    Unbranded

    Swimsuit Top
    Size 2X Plus
    $13.99
    44% 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
    Xhilaration Swimsuit Top (view 2)Xhilaration Swimsuit Top (view 1)
    View Product: Xhilaration Swimsuit Top

    Xhilaration

    Swimsuit Top
    Size Sm
    $7.99
    38% off estimated retail
    Beach Riot Swimsuit Bottoms (view 2)Beach Riot Swimsuit Bottoms (view 1)New With Tags
    View Product: Beach Riot Swimsuit Bottoms

    Beach Riot

    Swimsuit Bottoms
    Size Sm
    $29.99
    66% off estimated retail
    Melissa Odabash One Piece Swimsuit (view 2)Melissa Odabash One Piece Swimsuit (view 1)
    View Product: Melissa Odabash One Piece Swimsuit

    Melissa Odabash

    One Piece Swimsuit
    Size 2
    $43.99
    74% off estimated retail
    Good American Swimsuit Bottoms (view 2)Good American Swimsuit Bottoms (view 1)
    View Product: Good American Swimsuit Bottoms

    Good American

    Swimsuit Bottoms
    Size Med
    $27.99
    72% off estimated retail
    Triangl Swimsuit Bottoms (view 2)Triangl Swimsuit Bottoms (view 1)
    View Product: Triangl Swimsuit Bottoms

    Triangl

    Swimsuit Bottoms
    Size XXS
    $14.99
    76% off estimated retail
    Francesca's Swimsuit Cover Up (view 2)Francesca's Swimsuit Cover Up (view 1)
    View Product: Francesca's Swimsuit Cover Up

    Francesca's

    Swimsuit Cover Up
    Size Med
    $17.99
    52% off estimated retail
    Suboo Swimsuit Cover Up (view 2)Suboo Swimsuit Cover Up (view 1)
    View Product: Suboo Swimsuit Cover Up

    Suboo

    Swimsuit Cover Up
    Size Sm
    $77.99
    73% 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 4
    $15.99
    20% off estimated retail
    Victoria's Secret Pink Swimsuit Bottoms (view 2)Victoria's Secret Pink Swimsuit Bottoms (view 1)New With Tags
    View Product: Victoria's Secret Pink Swimsuit Bottoms

    Victoria's Secret Pink

    Swimsuit Bottoms
    Size Med
    $18.99
    23% off estimated retail
    Acacia Swimsuit Top (view 2)Acacia Swimsuit Top (view 1)
    View Product: Acacia Swimsuit Top

    Acacia

    Swimsuit Top
    Size Lg
    $29.99
    73% off estimated retail
    Unbranded Swimsuit Bottoms (view 2)Unbranded Swimsuit Bottoms (view 1)
    View Product: Unbranded Swimsuit Bottoms

    Unbranded

    Swimsuit Bottoms
    Size XS
    $9.99
    60% off estimated retail
    Shade & Shore Swimsuit Top (view 2)Shade & Shore Swimsuit Top (view 1)
    View Product: Shade & Shore Swimsuit Top

    Shade & Shore

    Swimsuit Top
    Size Med
    $14.99
    53% off estimated retail
    SONOMA life + style Board Shorts (view 2)SONOMA life + style Board Shorts (view 1)
    View Product: SONOMA life + style Board Shorts
    Size 10
    $14.99
    40% off estimated retail
    Good American Swimsuit Bottoms (view 2)Good American Swimsuit Bottoms (view 1)New With Tags
    View Product: Good American Swimsuit Bottoms

    Good American

    Swimsuit Bottoms
    Size Lg
    $11.99
    88% off estimated retail
    Tori Praver Swimsuit Bottoms (view 2)Tori Praver Swimsuit Bottoms (view 1)
    View Product: Tori Praver Swimsuit Bottoms

    Tori Praver

    Swimsuit Bottoms
    Size Lg
    $24.99
    78% off estimated retail
    ForPlay Swimsuit Cover Up (view 2)ForPlay Swimsuit Cover Up (view 1)
    View Product: ForPlay Swimsuit Cover Up

    ForPlay

    Swimsuit Cover Up
    Size Sm
    $22.99
    39% off estimated retail
    Tori Praver Swimsuit Top (view 2)Tori Praver Swimsuit Top (view 1)
    View Product: Tori Praver Swimsuit Top

    Tori Praver

    Swimsuit Top
    Size Lg
    $39.99
    65% off estimated retail
    Aerie Swimsuit Top (view 2)Aerie Swimsuit Top (view 1)
    View Product: Aerie Swimsuit Top

    Aerie

    Swimsuit Top
    Size Sm
    $10.99
    56% off estimated retail
    Aerie Swimsuit Bottoms (view 2)Aerie Swimsuit Bottoms (view 1)
    View Product: Aerie Swimsuit Bottoms

    Aerie

    Swimsuit Bottoms
    Size Med
    $9.99
    60% off estimated retail
    Calvin Klein Swimsuit Top (view 2)Calvin Klein Swimsuit Top (view 1)
    View Product: Calvin Klein Swimsuit Top

    Calvin Klein

    Swimsuit Top
    Size 10
    $20.99
    70% off estimated retail
    Gabar Swimsuit Bottoms (view 2)Gabar Swimsuit Bottoms (view 1)New With Tags
    View Product: Gabar Swimsuit Bottoms

    Gabar

    Swimsuit Bottoms
    Size 10
    $12.99
    65% off estimated retail
    Athleta Swimsuit Top (view 2)Athleta Swimsuit Top (view 1)
    View Product: Athleta Swimsuit Top

    Athleta

    Swimsuit Top
    Size XL
    $25.99
    55% off estimated retail
    Shade & Shore Swimsuit Top (view 2)Shade & Shore Swimsuit Top (view 1)
    View Product: Shade & Shore Swimsuit Top

    Shade & Shore

    Swimsuit Top
    Size Lg
    $15.99
    50% off estimated retail
    Tularosa Two Piece Swimsuit (view 2)Tularosa Two Piece Swimsuit (view 1)
    View Product: Tularosa Two Piece Swimsuit

    Tularosa

    Two Piece Swimsuit
    Size Lg
    $21.99
    80% off estimated retail
    LA Hearts Swimsuit Top (view 2)LA Hearts Swimsuit Top (view 1)
    View Product: LA Hearts Swimsuit Top

    LA Hearts

    Swimsuit Top
    Size Sm
    $13.99
    44% off estimated retail
    Aerie One Piece Swimsuit (view 2)Aerie One Piece Swimsuit (view 1)
    View Product: Aerie One Piece Swimsuit

    Aerie

    One Piece Swimsuit
    Size Sm
    $18.99
    50% off estimated retail
    Eberjey Swimsuit Top (view 2)Eberjey Swimsuit Top (view 1)New With Tags
    View Product: Eberjey Swimsuit Top

    Eberjey

    Swimsuit Top
    Size Sm
    $29.99
    53% off estimated retail
    Melissa Odabash Swimsuit Top (view 2)Melissa Odabash Swimsuit Top (view 1)
    View Product: Melissa Odabash Swimsuit Top

    Melissa Odabash

    Swimsuit Top
    Size 12
    $28.99
    74% off estimated retail
    J.Crew Swimsuit Bottoms (view 2)J.Crew Swimsuit Bottoms (view 1)
    View Product: J.Crew Swimsuit Bottoms

    J.Crew

    Swimsuit Bottoms
    Size Med
    $20.99
    61% 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 Lg
    $19.99
    47% off estimated retail
    Florabella Swimsuit Cover Up (view 2)Florabella Swimsuit Cover Up (view 1)
    View Product: Florabella Swimsuit Cover Up

    Florabella

    Swimsuit Cover Up
    Size XS
    $54.99
    82% off estimated retail
    Xhilaration Swimsuit Top (view 2)Xhilaration Swimsuit Top (view 1)
    View Product: Xhilaration Swimsuit Top

    Xhilaration

    Swimsuit Top
    Size Sm
    $10.99
    15% off estimated retail
    Ted Baker London One Piece Swimsuit (view 2)Ted Baker London One Piece Swimsuit (view 1)New With Tags
    View Product: Ted Baker London One Piece Swimsuit

    Ted Baker London

    One Piece Swimsuit
    Size 8
    $55.99
    58% off estimated retail
    Zaful Swimsuit Bottoms (view 2)Zaful Swimsuit Bottoms (view 1)
    View Product: Zaful Swimsuit Bottoms

    Zaful

    Swimsuit Bottoms
    Size 1X Plus

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