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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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    Wonder Nation One Piece Swimsuit (view 2)Wonder Nation One Piece Swimsuit (view 1)Price Drop
    View Product: Wonder Nation One Piece Swimsuit

    Wonder Nation

    One Piece Swimsuit
    Size 0-3 mo
    $6.99 $3.84 45% off with code GOBIG
    36% off estimated retail
    FBZ Two Piece Swimsuit (view 2)FBZ Two Piece Swimsuit (view 1)Price Drop
    View Product: FBZ Two Piece Swimsuit

    FBZ

    Two Piece Swimsuit
    Size Large tots
    $20.99 $11.54 45% off with code GOBIG
    61% off estimated retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)Price Drop
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 18 mo
    $10.99 $6.04 45% off with code GOBIG
    35% off estimated retail
    Vivo Biniya Rash Guard (view 2)Vivo Biniya Rash Guard (view 1)Price Drop
    View Product: Vivo Biniya Rash Guard

    Vivo Biniya

    Rash Guard
    Size 4
    $10.99 $6.04 45% off with code GOBIG
    59% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Gap Kids Rash Guard (view 2)Gap Kids Rash Guard (view 1)Price Drop
    View Product: Gap Kids Rash Guard

    Gap Kids

    Rash Guard
    Size X-Large kids
    $11.99 $6.59 45% off with code GOBIG
    62% off estimated retail
    Little Me Rash Guard (view 2)Little Me Rash Guard (view 1)Price Drop
    View Product: Little Me Rash Guard

    Little Me

    Rash Guard
    Size 6-9 mo
    $6.99 $3.84 45% off with code GOBIG
    56% off estimated retail
    Bob Der Bar One Piece Swimsuit (view 2)Bob Der Bar One Piece Swimsuit (view 1)Price Drop
    View Product: Bob Der Bar One Piece Swimsuit

    Bob Der Bar

    One Piece Swimsuit
    Size 6-9 mo
    $7.99 $4.39 45% off with code GOBIG
    27% off estimated retail
    Sofibella Rash Guard (view 2)Sofibella Rash Guard (view 1)Price Drop
    View Product: Sofibella Rash Guard

    Sofibella

    Rash Guard
    Size Small youth
    $9.99 $5.49 45% off with code GOBIG
    84% off estimated retail
    Lucky Brand Two Piece Swimsuit (view 2)Lucky Brand Two Piece Swimsuit (view 1)Price Drop
    View Product: Lucky Brand Two Piece Swimsuit

    Lucky Brand

    Two Piece Swimsuit
    Size 7
    $9.99 $5.49 45% off with code GOBIG
    75% off estimated retail
    Assorted Brands One Piece Swimsuit (view 2)Assorted Brands One Piece Swimsuit (view 1)Price Drop
    View Product: Assorted Brands One Piece Swimsuit

    Assorted Brands

    One Piece Swimsuit
    Size 6-9 mo
    $9.99 $5.49 45% off with code GOBIG
    54% off estimated retail
    Assorted Brands Two Piece Swimsuit (view 2)Assorted Brands Two Piece Swimsuit (view 1)Price Drop
    View Product: Assorted Brands Two Piece Swimsuit

    Assorted Brands

    Two Piece Swimsuit
    Size 110 cm
    $9.99 $5.49 45% off with code GOBIG
    63% off estimated retail
    More Than Magic Rash Guard (view 2)More Than Magic Rash Guard (view 1)Price Drop
    View Product: More Than Magic Rash Guard

    More Than Magic

    Rash Guard
    Size 4
    $9.99 $5.49 45% off with code GOBIG
    28% off estimated retail
    Assorted Brands Rash Guard (view 2)Assorted Brands Rash Guard (view 1)Price Drop
    View Product: Assorted Brands Rash Guard

    Assorted Brands

    Rash Guard
    Size 10
    $9.99 $5.49 45% off with code GOBIG
    69% off estimated retail
    Assorted Brands Rash Guard (view 2)Assorted Brands Rash Guard (view 1)Price Drop
    View Product: Assorted Brands Rash Guard

    Assorted Brands

    Rash Guard
    Size 10
    $9.99 $5.49 45% off with code GOBIG
    69% off estimated retail
    Cat & Jack Rash Guard (view 2)Cat & Jack Rash Guard (view 1)Price Drop
    View Product: Cat & Jack Rash Guard

    Cat & Jack

    Rash Guard
    Size 4
    $9.99 $5.49 45% off with code GOBIG
    50% off estimated retail
    Cat & Jack Rash Guard (view 2)Cat & Jack Rash Guard (view 1)Price Drop
    View Product: Cat & Jack Rash Guard

    Cat & Jack

    Rash Guard
    Size 3-6 mo
    $7.99 $4.39 45% off with code GOBIG
    60% off estimated retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)Price Drop
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 6-9 mo
    $8.99 $4.94 45% off with code GOBIG
    47% off estimated retail
    Janie and Jack Rash Guard (view 2)Janie and Jack Rash Guard (view 1)Price Drop
    View Product: Janie and Jack Rash Guard

    Janie and Jack

    Rash Guard
    Size 3-6 mo
    $7.99 $4.39 45% off with code GOBIG
    74% off estimated retail
    Gap Two Piece Swimsuit (view 2)Gap Two Piece Swimsuit (view 1)Price Drop
    View Product: Gap Two Piece Swimsuit

    Gap

    Two Piece Swimsuit
    Size Small infants
    $9.99 $5.49 45% off with code GOBIG
    52% off estimated retail
    Cat & Jack Rash Guard (view 2)Cat & Jack Rash Guard (view 1)Price Drop
    View Product: Cat & Jack Rash Guard

    Cat & Jack

    Rash Guard
    Size 10
    $7.99 $4.39 45% off with code GOBIG
    60% off estimated retail
    More Than Magic Rash Guard (view 2)More Than Magic Rash Guard (view 1)Price Drop
    View Product: More Than Magic Rash Guard

    More Than Magic

    Rash Guard
    Size 4
    $6.99 $3.84 45% off with code GOBIG
    46% off estimated retail
    Gymboree One Piece Swimsuit (view 2)Gymboree One Piece Swimsuit (view 1)Price Drop
    View Product: Gymboree One Piece Swimsuit

    Gymboree

    One Piece Swimsuit
    Size 12-18 mo
    $7.99 $4.39 45% off with code GOBIG
    68% off estimated retail
    Plaid Fish One Piece Swimsuit (view 2)Plaid Fish One Piece Swimsuit (view 1)Price Drop
    View Product: Plaid Fish One Piece Swimsuit

    Plaid Fish

    One Piece Swimsuit
    Size 18 mo
    $7.99 $4.39 45% off with code GOBIG
    20% off estimated retail
    More Than Magic Rash Guard (view 2)More Than Magic Rash Guard (view 1)Price Drop
    View Product: More Than Magic Rash Guard

    More Than Magic

    Rash Guard
    Size 4
    $8.99 $4.94 45% off with code GOBIG
    30% off estimated retail
    Cat & Jack Rash Guard (view 2)Cat & Jack Rash Guard (view 1)Price Drop
    View Product: Cat & Jack Rash Guard

    Cat & Jack

    Rash Guard
    Size Small tots
    $7.99 $4.39 45% off with code GOBIG
    20% off estimated retail
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