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Whether it's for summertime or swimming lessons, your girls need the right gear for when they dive into the water. Check out thredUP's selection of girls' swimwear to discover items from top brands at up to 90% off estimated retail.

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31 items
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    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 14
    $27.99
    70% off estimated retail
    Ruffle Butts One Piece Swimsuit (view 2)Ruffle Butts One Piece Swimsuit (view 1)
    View Product: Ruffle Butts One Piece Swimsuit

    Ruffle Butts

    One Piece Swimsuit
    Size 0-3 mo
    $8.99
    18% off estimated retail
    Ruffle Butts Two Piece Swimsuit (view 2)Ruffle Butts Two Piece Swimsuit (view 1)
    View Product: Ruffle Butts Two Piece Swimsuit

    Ruffle Butts

    Two Piece Swimsuit
    Size 2T
    $9.99 $11
    Kids Tales One Piece Swimsuit (view 2)Kids Tales One Piece Swimsuit (view 1)New With Tags
    View Product: Kids Tales One Piece Swimsuit

    Kids Tales

    One Piece Swimsuit
    Size 90 cm
    $6.99
    36% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    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 4
    $15.99
    40% off estimated retail
    Hope & Henry One Piece Swimsuit (view 2)Hope & Henry One Piece Swimsuit (view 1)
    View Product: Hope & Henry One Piece Swimsuit

    Hope & Henry

    One Piece Swimsuit
    Size 2T
    $14.99
    31% off estimated retail
    Justice One Piece Swimsuit (view 2)Justice One Piece Swimsuit (view 1)
    View Product: Justice One Piece Swimsuit

    Justice

    One Piece Swimsuit
    Size 16
    $20.99
    40% off estimated retail
    Janie and Jack One Piece Swimsuit (view 2)Janie and Jack One Piece Swimsuit (view 1)
    View Product: Janie and Jack One Piece Swimsuit

    Janie and Jack

    One Piece Swimsuit
    Size 10
    $15.99
    61% off estimated retail
    The Beaufort Bonnet Company One Piece Swimsuit (view 2)The Beaufort Bonnet Company One Piece Swimsuit (view 1)
    View Product: The Beaufort Bonnet Company One Piece Swimsuit

    The Beaufort Bonnet Company

    One Piece Swimsuit
    Size 12-18 mo
    $19.99
    63% off estimated retail
    Cat & Jack Two Piece Swimsuit (view 2)Cat & Jack Two Piece Swimsuit (view 1)Flawed Gem
    View Product: Cat & Jack Two Piece Swimsuit

    Cat & Jack

    Two Piece Swimsuit
    Size Large kids
    $10.99
    35% 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 4
    $12.99
    51% 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 8
    $14.99
    54% off estimated retail
    Janie and Jack One Piece Swimsuit (view 2)Janie and Jack One Piece Swimsuit (view 1)
    View Product: Janie and Jack One Piece Swimsuit

    Janie and Jack

    One Piece Swimsuit
    Size 18-24 mo
    $15.99
    61% off estimated retail
    Crew & Lu One Piece Swimsuit (view 2)Crew & Lu One Piece Swimsuit (view 1)
    View Product: Crew & Lu One Piece Swimsuit

    Crew & Lu

    One Piece Swimsuit
    Size 12-18 mo
    $18.99
    65% off estimated retail
    Janie and Jack One Piece Swimsuit (view 2)Janie and Jack One Piece Swimsuit (view 1)
    View Product: Janie and Jack One Piece Swimsuit

    Janie and Jack

    One Piece Swimsuit
    Size 2T
    $19.99
    52% off estimated retail
    Janie and Jack One Piece Swimsuit (view 2)Janie and Jack One Piece Swimsuit (view 1)
    View Product: Janie and Jack One Piece Swimsuit

    Janie and Jack

    One Piece Swimsuit
    Size 2T
    $17.99
    57% off estimated retail
    Janie and Jack Swimsuit Cover Up (view 2)Janie and Jack Swimsuit Cover Up (view 1)
    View Product: Janie and Jack Swimsuit Cover Up

    Janie and Jack

    Swimsuit Cover Up
    Size 12
    $16.99
    58% off estimated retail
    Hanna Andersson One Piece Swimsuit (view 2)Hanna Andersson One Piece Swimsuit (view 1)
    View Product: Hanna Andersson One Piece Swimsuit

    Hanna Andersson

    One Piece Swimsuit
    Size 4
    $25.99
    36% off estimated retail
    Old Navy Swimsuit Cover Up (view 2)Old Navy Swimsuit Cover Up (view 1)
    View Product: Old Navy Swimsuit Cover Up

    Old Navy

    Swimsuit Cover Up
    Size 3T
    $10.99
    38% off estimated retail
    Janie and Jack One Piece Swimsuit (view 2)Janie and Jack One Piece Swimsuit (view 1)
    View Product: Janie and Jack One Piece Swimsuit

    Janie and Jack

    One Piece Swimsuit
    Size 4
    $17.99
    57% off estimated retail
    Penelope Mack One Piece Swimsuit (view 2)Penelope Mack One Piece Swimsuit (view 1)
    View Product: Penelope Mack One Piece Swimsuit

    Penelope Mack

    One Piece Swimsuit
    Size 3T
    $13.99
    48% 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 2T
    $9.99
    54% 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 Medium kids
    $9.99
    44% off estimated retail
    Assorted Brands Rash Guard (view 2)Assorted Brands Rash Guard (view 1)
    View Product: Assorted Brands Rash Guard

    Assorted Brands

    Rash Guard
    Size 7
    $13.99
    57% off estimated retail
    Baby Gap Swimsuit Cover Up (view 2)Baby Gap Swimsuit Cover Up (view 1)
    View Product: Baby Gap Swimsuit Cover Up

    Baby Gap

    Swimsuit Cover Up
    Size 6-12 mo
    $13.99
    33% off estimated retail
    Roxy Two Piece Swimsuit (view 2)Roxy Two Piece Swimsuit (view 1)
    View Product: Roxy Two Piece Swimsuit

    Roxy

    Two Piece Swimsuit
    Size 8
    $16.99
    58% off estimated retail
    Lilly Pulitzer Swimsuit Cover Up (view 2)Lilly Pulitzer Swimsuit Cover Up (view 1)
    View Product: Lilly Pulitzer Swimsuit Cover Up

    Lilly Pulitzer

    Swimsuit Cover Up
    Size X-Large kids
    $25.99
    46% off estimated retail
    Gap Kids One Piece Swimsuit (view 2)Gap Kids One Piece Swimsuit (view 1)
    View Product: Gap Kids One Piece Swimsuit

    Gap Kids

    One Piece Swimsuit
    Size X-Small kids
    $15.99
    50% off estimated retail
    Bloch One Piece Swimsuit (view 2)Bloch One Piece Swimsuit (view 1)
    View Product: Bloch One Piece Swimsuit

    Bloch

    One Piece Swimsuit
    Size 4
    $11.99
    55% off estimated retail
    Stella Cove One Piece Swimsuit (view 2)Stella Cove One Piece Swimsuit (view 1)
    View Product: Stella Cove One Piece Swimsuit

    Stella Cove

    One Piece Swimsuit
    Size 2
    $11.99
    55% off estimated retail
    Stella McCartney One Piece Swimsuit (view 2)Stella McCartney One Piece Swimsuit (view 1)
    View Product: Stella McCartney One Piece Swimsuit

    Stella McCartney

    One Piece Swimsuit
    Size 24 mo
    $53.99
    37% off estimated retail
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