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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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258 items
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    Cat & Jack Two Piece Swimsuit (view 2)Cat & Jack Two Piece Swimsuit (view 1)
    View Product: Cat & Jack Two Piece Swimsuit

    Cat & Jack

    Two Piece Swimsuit
    Size 12 mo
    $9.99 $5.49 45% off with code GOBIG
    41% off estimated retail
    Silly Goose One Piece Swimsuit (view 2)Silly Goose One Piece Swimsuit (view 1)
    View Product: Silly Goose One Piece Swimsuit

    Silly Goose

    One Piece Swimsuit
    Size 18 mo
    $10.99 $6.04 45% off with code GOBIG
    50% off estimated retail
    Art Class Two Piece Swimsuit (view 2)Art Class Two Piece Swimsuit (view 1)
    View Product: Art Class Two Piece Swimsuit

    Art Class

    Two Piece Swimsuit
    Size 10
    $10.99 $6.04 45% off with code GOBIG
    45% off estimated retail
    Art Class Swimsuit Cover Up (view 2)Art Class Swimsuit Cover Up (view 1)
    View Product: Art Class Swimsuit Cover Up

    Art Class

    Swimsuit Cover Up
    Size 10
    $12.99 $7.14 45% off with code GOBIG
    35% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Abercrombie One Piece Swimsuit (view 2)Abercrombie One Piece Swimsuit (view 1)
    View Product: Abercrombie One Piece Swimsuit

    Abercrombie

    One Piece Swimsuit
    Size 9
    $18.99 $10.44 45% off with code GOBIG
    48% off estimated retail
    Lands' End Rash Guard (view 2)Lands' End Rash Guard (view 1)
    View Product: Lands' End Rash Guard

    Lands' End

    Rash Guard
    Size 12
    $25.99 $14.29 45% off with code GOBIG
    58% off estimated retail
    Lands' End Rash Guard (view 2)Lands' End Rash Guard (view 1)
    View Product: Lands' End Rash Guard

    Lands' End

    Rash Guard
    Size 10
    $27.99 $15.39 45% off with code GOBIG
    55% off estimated retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 18 mo
    $13.99 $7.69 45% off with code GOBIG
    30% off estimated retail
    Penelope Mack Two Piece Swimsuit (view 2)Penelope Mack Two Piece Swimsuit (view 1)
    View Product: Penelope Mack Two Piece Swimsuit

    Penelope Mack

    Two Piece Swimsuit
    Size 18 mo
    $9.99 $5.49 45% off with code GOBIG
    54% off estimated retail
    Splendid One Piece Swimsuit (view 2)Splendid One Piece Swimsuit (view 1)
    View Product: Splendid One Piece Swimsuit

    Splendid

    One Piece Swimsuit
    Size 14
    $15.99 $8.79 45% off with code GOBIG
    69% off estimated retail
    Pink Chicken One Piece Swimsuit (view 2)Pink Chicken One Piece Swimsuit (view 1)New With Tags
    View Product: Pink Chicken One Piece Swimsuit

    Pink Chicken

    One Piece Swimsuit
    Size 2X-large kids
    $27.99 $15.39 45% off with code GOBIG
    56% off estimated retail
    Sweet Honey Two Piece Swimsuit (view 2)Sweet Honey Two Piece Swimsuit (view 1)
    View Product: Sweet Honey Two Piece Swimsuit

    Sweet Honey

    Two Piece Swimsuit
    Size 6
    $18.99 $10.44 45% off with code GOBIG
    53% off estimated retail
    Cat & Jack Two Piece Swimsuit (view 2)Cat & Jack Two Piece Swimsuit (view 1)
    View Product: Cat & Jack Two Piece Swimsuit

    Cat & Jack

    Two Piece Swimsuit
    Size 12 mo
    $12.99 $7.14 45% off with code GOBIG
    23% 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-Large kids
    $20.99 $11.54 45% off with code GOBIG
    51% off estimated retail
    DSG One Piece Swimsuit (view 2)DSG One Piece Swimsuit (view 1)
    View Product: DSG One Piece Swimsuit

    DSG

    One Piece Swimsuit
    Size 16
    $20.99 $11.54 45% off with code GOBIG
    39% off estimated retail
    Hanna Andersson Two Piece Swimsuit (view 2)Hanna Andersson Two Piece Swimsuit (view 1)
    View Product: Hanna Andersson Two Piece Swimsuit

    Hanna Andersson

    Two Piece Swimsuit
    Size 18-24 mo
    $25.99 $14.29 45% off with code GOBIG
    36% off estimated retail
    Coolibar Rash Guard (view 2)Coolibar Rash Guard (view 1)Flawed Gem
    View Product: Coolibar Rash Guard

    Coolibar

    Rash Guard
    Size Medium youth
    $25.99 $14.29 45% off with code GOBIG
    46% off estimated retail
    Ed Hardy One Piece Swimsuit (view 2)Ed Hardy One Piece Swimsuit (view 1)
    View Product: Ed Hardy One Piece Swimsuit

    Ed Hardy

    One Piece Swimsuit
    Size 6
    $19.99 $10.99 45% off with code GOBIG
    51% off estimated retail
    Gap Kids Rash Guard (view 2)Gap Kids Rash Guard (view 1)
    View Product: Gap Kids Rash Guard

    Gap Kids

    Rash Guard
    Size X-Large youth
    $14.99 $8.24 45% off with code GOBIG
    53% off estimated retail
    Swiss Gear Two Piece Swimsuit (view 2)Swiss Gear Two Piece Swimsuit (view 1)
    View Product: Swiss Gear Two Piece Swimsuit

    Swiss Gear

    Two Piece Swimsuit
    Size 24 mo
    $8.99 $4.94 45% off with code GOBIG
    43% off estimated retail
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