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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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36 items
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    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 6
    $11.99
    29% off estimated retail
    Lands' End Two Piece Swimsuit (view 2)Lands' End Two Piece Swimsuit (view 1)
    View Product: Lands' End Two Piece Swimsuit

    Lands' End

    Two Piece Swimsuit
    Size 6
    $16.99
    48% off estimated retail
    Gymboree Two Piece Swimsuit (view 2)Gymboree Two Piece Swimsuit (view 1)
    View Product: Gymboree Two Piece Swimsuit

    Gymboree

    Two Piece Swimsuit
    Size 6
    $17.99
    33% off estimated retail
    Roxy Rash Guard (view 2)Roxy Rash Guard (view 1)
    View Product: Roxy Rash Guard

    Roxy

    Rash Guard
    Size 6
    $19.99
    51% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    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 6
    $10.99
    35% 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 6
    $10.99
    45% off estimated retail
    Hanna Andersson Rash Guard (view 2)Hanna Andersson Rash Guard (view 1)
    View Product: Hanna Andersson Rash Guard

    Hanna Andersson

    Rash Guard
    Size 6
    $10.99
    54% off estimated retail
    Roxy Rash Guard (view 2)Roxy Rash Guard (view 1)
    View Product: Roxy Rash Guard

    Roxy

    Rash Guard
    Size 6
    $16.99
    58% off estimated retail
    Ruffle Butts Rash Guard (view 2)Ruffle Butts Rash Guard (view 1)
    View Product: Ruffle Butts Rash Guard

    Ruffle Butts

    Rash Guard
    Size 6
    $8.99 $7.19 20% off with code THANKU
    43% off estimated retail
    Lands' End Two Piece Swimsuit (view 2)Lands' End Two Piece Swimsuit (view 1)
    View Product: Lands' End Two Piece Swimsuit

    Lands' End

    Two Piece Swimsuit
    Size 6
    $17.99 $13.49 25% off with code THANKU
    52% off estimated retail
    American Eagle Outfitters Board Shorts (view 2)American Eagle Outfitters Board Shorts (view 1)
    View Product: American Eagle Outfitters Board Shorts

    American Eagle Outfitters

    Board Shorts
    Size 6
    $10.99
    50% 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 6
    $15.99 $11.99 25% off with code THANKU
    54% off estimated retail
    Garnet Hill One Piece Swimsuit (view 2)Garnet Hill One Piece Swimsuit (view 1)
    View Product: Garnet Hill One Piece Swimsuit

    Garnet Hill

    One Piece Swimsuit
    Size 6
    $19.99 $13.99 30% off with code THANKU
    39% off estimated retail
    Andy & Evan Board Shorts (view 2)Andy & Evan Board Shorts (view 1)
    View Product: Andy & Evan Board Shorts

    Andy & Evan

    Board Shorts
    Size 6
    $18.99 $14.24 25% off with code THANKU
    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 6
    $12.99 $9.74 25% off with code THANKU
    48% off estimated retail
    OshKosh B'gosh Rash Guard (view 2)OshKosh B'gosh Rash Guard (view 1)
    View Product: OshKosh B'gosh Rash Guard

    OshKosh B'gosh

    Rash Guard
    Size 6
    $8.99 $7.19 20% off with code THANKU
    62% 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 6
    $9.99 $7.99 20% off with code THANKU
    69% off estimated retail
    Big Chill Board Shorts (view 2)Big Chill Board Shorts (view 1)
    View Product: Big Chill Board Shorts

    Big Chill

    Board Shorts
    Size 6
    $8.99 $7.19 20% off with code THANKU
    18% 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 6
    $10.99 $8.24 25% off with code THANKU
    66% off estimated retail
    Tommy Bahama One Piece Swimsuit (view 2)Tommy Bahama One Piece Swimsuit (view 1)
    View Product: Tommy Bahama One Piece Swimsuit

    Tommy Bahama

    One Piece Swimsuit
    Size 6
    $32.99 $26.39 20% off with code THANKU
    19% 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 6
    $13.99 $11.19 20% off with code THANKU
    51% off estimated retail
    Assorted Brands Swimsuit Cover Up (view 2)Assorted Brands Swimsuit Cover Up (view 1)
    View Product: Assorted Brands Swimsuit Cover Up

    Assorted Brands

    Swimsuit Cover Up
    Size 6
    $13.99 $9.09 35% off with code THANKU
    57% 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 6
    $12.99 $10.39 20% off with code THANKU
    23% off estimated retail
    Skechers Board Shorts (view 2)Skechers Board Shorts (view 1)
    View Product: Skechers Board Shorts

    Skechers

    Board Shorts
    Size 6
    $9.99 $7.99 20% off with code THANKU
    63% 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 6
    $20.99 $15.74 25% off with code THANKU
    40% off estimated retail
    Ivivva Rash Guard (view 2)Ivivva Rash Guard (view 1)
    View Product: Ivivva Rash Guard

    Ivivva

    Rash Guard
    Size 6
    $9.99 $7.99 20% off with code THANKU
    79% off estimated retail
    Perfect Moment One Piece Swimsuit (view 2)Perfect Moment One Piece Swimsuit (view 1)
    View Product: Perfect Moment One Piece Swimsuit

    Perfect Moment

    One Piece Swimsuit
    Size 6
    $131.99 $92.39 30% off with code THANKU
    62% off estimated retail
    Vilebrequin One Piece Swimsuit (view 2)Vilebrequin One Piece Swimsuit (view 1)
    View Product: Vilebrequin One Piece Swimsuit

    Vilebrequin

    One Piece Swimsuit
    Size 6
    $29.99 $22.49 25% off with code THANKU
    79% off estimated retail
    Profile Varsity One Piece Swimsuit (view 2)Profile Varsity One Piece Swimsuit (view 1)New With Tags
    View Product: Profile Varsity One Piece Swimsuit

    Profile Varsity

    One Piece Swimsuit
    Size 6
    $11.99 $9.59 20% off with code THANKU
    25% off estimated retail
    Nike One Piece Swimsuit (view 2)Nike One Piece Swimsuit (view 1)Price Drop
    View Product: Nike One Piece Swimsuit

    Nike

    One Piece Swimsuit
    Size 6
    $13.99 $10.49 25% off with code THANKU
    64% off estimated retail
    Zara One Piece Swimsuit (view 2)Zara One Piece Swimsuit (view 1)Price Drop
    View Product: Zara One Piece Swimsuit

    Zara

    One Piece Swimsuit
    Size 6
    $16.99 $12.74 25% off with code THANKU
    58% off estimated retail
    Art Class One Piece Swimsuit (view 2)Art Class One Piece Swimsuit (view 1)Price Drop
    View Product: Art Class One Piece Swimsuit

    Art Class

    One Piece Swimsuit
    Size 6
    $10.99 $8.79 20% off with code THANKU
    45% off estimated retail
    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 6
    $9.99 $7.99 20% off with code THANKU
    68% 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 6
    $7.99 $6.39 20% off with code THANKU
    60% 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 6
    $8.99 $7.19 20% off with code THANKU
    55% 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 6
    $9.99 $7.99 20% off with code THANKU
    50% off estimated retail
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