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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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    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 12
    $15.99
    61% off estimated retail
    Tea Rash Guard (view 2)Tea Rash Guard (view 1)
    View Product: Tea Rash Guard

    Tea

    Rash Guard
    Size 12
    $16.99
    58% off estimated retail
    Tea One Piece Swimsuit (view 2)Tea One Piece Swimsuit (view 1)
    View Product: Tea One Piece Swimsuit

    Tea

    One Piece Swimsuit
    Size 12
    $19.99
    58% 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 12
    $17.99
    52% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Tea One Piece Swimsuit (view 2)Tea One Piece Swimsuit (view 1)
    View Product: Tea One Piece Swimsuit

    Tea

    One Piece Swimsuit
    Size 12
    $17.99
    62% 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 12
    $13.99
    65% 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 12
    $12.99
    62% off estimated retail
    Athleta One Piece Swimsuit (view 2)Athleta One Piece Swimsuit (view 1)
    View Product: Athleta One Piece Swimsuit

    Athleta

    One Piece Swimsuit
    Size 12
    $33.99
    30% off estimated retail
    Danskin Now One Piece Swimsuit (view 2)Danskin Now One Piece Swimsuit (view 1)
    View Product: Danskin Now One Piece Swimsuit

    Danskin Now

    One Piece Swimsuit
    Size 12
    $8.99
    43% off estimated retail
    Tea Rash Guard (view 2)Tea Rash Guard (view 1)
    View Product: Tea Rash Guard

    Tea

    Rash Guard
    Size 12
    $22.99
    43% 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
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 12
    $13.99
    57% off estimated retail
    Limeapple One Piece Swimsuit (view 2)Limeapple One Piece Swimsuit (view 1)
    View Product: Limeapple One Piece Swimsuit

    Limeapple

    One Piece Swimsuit
    Size 12
    $18.99
    61% off estimated retail
    Athleta One Piece Swimsuit (view 2)Athleta One Piece Swimsuit (view 1)
    View Product: Athleta One Piece Swimsuit

    Athleta

    One Piece Swimsuit
    Size 12
    $21.99
    55% off estimated retail
    Ruffle Butts One Piece Swimsuit (view 2)Ruffle Butts One Piece Swimsuit (view 1)New With Tags
    View Product: Ruffle Butts One Piece Swimsuit

    Ruffle Butts

    One Piece Swimsuit
    Size 12
    $12.99
    18% off estimated retail
    O'Neill One Piece Swimsuit (view 2)O'Neill One Piece Swimsuit (view 1)
    View Product: O'Neill One Piece Swimsuit

    O'Neill

    One Piece Swimsuit
    Size 12
    $18.99
    42% off estimated retail
    Cabana Life One Piece Swimsuit (view 2)Cabana Life One Piece Swimsuit (view 1)
    View Product: Cabana Life One Piece Swimsuit

    Cabana Life

    One Piece Swimsuit
    Size 12
    $19.99
    69% off estimated retail
    Banana Cabana Two Piece Swimsuit (view 2)Banana Cabana Two Piece Swimsuit (view 1)
    View Product: Banana Cabana Two Piece Swimsuit

    Banana Cabana

    Two Piece Swimsuit
    Size 12
    $15.99
    51% off estimated retail
    Athleta One Piece Swimsuit (view 2)Athleta One Piece Swimsuit (view 1)
    View Product: Athleta One Piece Swimsuit

    Athleta

    One Piece Swimsuit
    Size 12
    $28.99
    40% off estimated retail
    Lilly Pulitzer One Piece Swimsuit (view 2)Lilly Pulitzer One Piece Swimsuit (view 1)
    View Product: Lilly Pulitzer One Piece Swimsuit

    Lilly Pulitzer

    One Piece Swimsuit
    Size 12
    $29.99
    38% 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 12
    $16.99
    48% 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 12
    $22.99
    39% off estimated retail
    Crewcuts One Piece Swimsuit (view 2)Crewcuts One Piece Swimsuit (view 1)
    View Product: Crewcuts One Piece Swimsuit

    Crewcuts

    One Piece Swimsuit
    Size 12
    $18.99
    61% off estimated retail
    Assorted Brands Two Piece Swimsuit (view 2)Assorted Brands Two Piece Swimsuit (view 1)
    View Product: Assorted Brands Two Piece Swimsuit

    Assorted Brands

    Two Piece Swimsuit
    Size 12
    $11.99
    63% off estimated retail
    Crewcuts Swimsuit Cover Up (view 2)Crewcuts Swimsuit Cover Up (view 1)
    View Product: Crewcuts Swimsuit Cover Up

    Crewcuts

    Swimsuit Cover Up
    Size 12
    $17.99
    63% 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 12
    $14.99
    54% off estimated retail
    Justice Two Piece Swimsuit (view 2)Justice Two Piece Swimsuit (view 1)
    View Product: Justice Two Piece Swimsuit

    Justice

    Two Piece Swimsuit
    Size 12
    $15.99
    51% off estimated retail
    Crewcuts One Piece Swimsuit (view 2)Crewcuts One Piece Swimsuit (view 1)Flawed Gem
    View Product: Crewcuts One Piece Swimsuit

    Crewcuts

    One Piece Swimsuit
    Size 12
    $17.99 $10.79 40% off with code THANKU
    63% off estimated retail
    Athleta Rash Guard (view 2)Athleta Rash Guard (view 1)
    View Product: Athleta Rash Guard

    Athleta

    Rash Guard
    Size 12
    $25.99 $14.29 45% off with code THANKU
    46% off estimated retail
    Justice Two Piece Swimsuit (view 2)Justice Two Piece Swimsuit (view 1)
    View Product: Justice Two Piece Swimsuit

    Justice

    Two Piece Swimsuit
    Size 12
    $16.99 $10.19 40% off with code THANKU
    48% off estimated retail
    Sonoma Goods for Life One Piece Swimsuit (view 2)Sonoma Goods for Life One Piece Swimsuit (view 1)
    View Product: Sonoma Goods for Life One Piece Swimsuit

    Sonoma Goods for Life

    One Piece Swimsuit
    Size 12
    $13.99 $10.49 25% off with code THANKU
    44% 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 12
    $12.99 $9.74 25% off with code THANKU
    60% 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 12
    $14.99 $11.24 25% off with code THANKU
    54% off estimated retail
    Venus Rash Guard (view 2)Venus Rash Guard (view 1)
    View Product: Venus Rash Guard

    Venus

    Rash Guard
    Size 12
    $7.99 $6.39 20% off with code THANKU
    50% off estimated retail
    Nordstrom One Piece Swimsuit (view 2)Nordstrom One Piece Swimsuit (view 1)
    View Product: Nordstrom One Piece Swimsuit

    Nordstrom

    One Piece Swimsuit
    Size 12
    $14.99 $11.24 25% off with code THANKU
    63% off estimated retail
    Bloch Swimsuit Cover Up (view 2)Bloch Swimsuit Cover Up (view 1)
    View Product: Bloch Swimsuit Cover Up

    Bloch

    Swimsuit Cover Up
    Size 12
    $14.99 $11.24 25% off with code THANKU
    54% off estimated retail
    Max Grey One Piece Swimsuit (view 2)Max Grey One Piece Swimsuit (view 1)
    View Product: Max Grey One Piece Swimsuit

    Max Grey

    One Piece Swimsuit
    Size 12
    $10.99 $8.79 20% off with code THANKU
    31% off estimated retail
    KANU girl One Piece Swimsuit (view 2)KANU girl One Piece Swimsuit (view 1)
    View Product: KANU girl One Piece Swimsuit

    KANU girl

    One Piece Swimsuit
    Size 12
    $19.99 $14.99 25% off with code THANKU
    39% off estimated retail
    Athleta Rash Guard (view 2)Athleta Rash Guard (view 1)
    View Product: Athleta Rash Guard

    Athleta

    Rash Guard
    Size 12
    $23.99 $13.19 45% off with code THANKU
    51% off estimated retail
    H&M Two Piece Swimsuit (view 2)H&M Two Piece Swimsuit (view 1)
    View Product: H&M Two Piece Swimsuit

    H&M

    Two Piece Swimsuit
    Size 12
    $9.99 $7.99 20% off with code THANKU
    44% off estimated retail
    Rockets of Awesome Rash Guard (view 2)Rockets of Awesome Rash Guard (view 1)New With Tags
    View Product: Rockets of Awesome Rash Guard

    Rockets of Awesome

    Rash Guard
    Size 12
    $10.99 $8.24 25% off with code THANKU
    66% off estimated retail
    Seafolly Rash Guard (view 2)Seafolly Rash Guard (view 1)
    View Product: Seafolly Rash Guard

    Seafolly

    Rash Guard
    Size 12
    $16.99 $10.19 40% off with code THANKU
    65% off estimated retail
    Snapper Rock Rash Guard (view 2)Snapper Rock Rash Guard (view 1)
    View Product: Snapper Rock Rash Guard

    Snapper Rock

    Rash Guard
    Size 12
    $13.99 $11.19 20% off with code THANKU
    44% off estimated retail
    Athleta Rash Guard (view 2)Athleta Rash Guard (view 1)
    View Product: Athleta Rash Guard

    Athleta

    Rash Guard
    Size 12
    $22.99 $12.64 45% off with code THANKU
    53% off estimated retail
    Justice Two Piece Swimsuit (view 2)Justice Two Piece Swimsuit (view 1)
    View Product: Justice Two Piece Swimsuit

    Justice

    Two Piece Swimsuit
    Size 12
    $14.99 $10.49 30% off with code THANKU
    54% 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 12
    $4.99 $3.99 20% off with code THANKU
    84% off estimated retail
    Jessica Simpson Rash Guard (view 2)Jessica Simpson Rash Guard (view 1)
    View Product: Jessica Simpson Rash Guard

    Jessica Simpson

    Rash Guard
    Size 12
    $9.99 $7.99 20% off with code THANKU
    60% 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 12
    $21.99 $13.19 40% off with code THANKU
    42% off estimated retail
    Terez One Piece Swimsuit (view 2)Terez One Piece Swimsuit (view 1)
    View Product: Terez One Piece Swimsuit

    Terez

    One Piece Swimsuit
    Size 12
    $20.99 $15.74 25% off with code THANKU
    74% off estimated retail
    Assorted Brands Wetsuit (view 2)Assorted Brands Wetsuit (view 1)
    View Product: Assorted Brands Wetsuit

    Assorted Brands

    Wetsuit
    Size 12
    $16.99 $13.59 20% off with code THANKU
    48% 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 12
    $5.99 $4.79 20% off with code THANKU
    81% off estimated retail
    Breaking Waves Swimsuit Cover Up (view 2)Breaking Waves Swimsuit Cover Up (view 1)
    View Product: Breaking Waves Swimsuit Cover Up

    Breaking Waves

    Swimsuit Cover Up
    Size 12
    $10.99 $8.24 25% off with code THANKU
    45% off estimated retail
    Summer Crush One Piece Swimsuit (view 2)Summer Crush One Piece Swimsuit (view 1)
    View Product: Summer Crush One Piece Swimsuit

    Summer Crush

    One Piece Swimsuit
    Size 12
    $5.99 $4.79 20% off with code THANKU
    62% off estimated retail
    DBX Rash Guard (view 2)DBX Rash Guard (view 1)
    View Product: DBX Rash Guard

    DBX

    Rash Guard
    Size 12
    $5.99 $4.79 20% off with code THANKU
    62% off estimated retail
    Unbranded Rash Guard (view 2)Unbranded Rash Guard (view 1)
    View Product: Unbranded Rash Guard

    Unbranded

    Rash Guard
    Size 12
    $12.99 $9.74 25% off with code THANKU
    60% off estimated retail
    Assorted Brands Two Piece Swimsuit (view 2)Assorted Brands Two Piece Swimsuit (view 1)
    View Product: Assorted Brands Two Piece Swimsuit

    Assorted Brands

    Two Piece Swimsuit
    Size 12
    $14.99 $10.49 30% off with code THANKU
    54% 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 12
    $11.99 $9.59 20% off with code THANKU
    63% off estimated retail
    SwimZip Rash Guard (view 2)SwimZip Rash Guard (view 1)
    View Product: SwimZip Rash Guard

    SwimZip

    Rash Guard
    Size 12
    $17.99 $13.49 25% off with code THANKU
    45% off estimated retail
    Crewcuts Board Shorts (view 2)Crewcuts Board Shorts (view 1)
    View Product: Crewcuts Board Shorts

    Crewcuts

    Board Shorts
    Size 12
    $10.99 $8.24 25% off with code THANKU
    66% off estimated retail
    Carter's Rash Guard (view 2)Carter's Rash Guard (view 1)
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    Size 12
    $12.99 $10.39 20% off with code THANKU
    56% off estimated retail
    Carter's Rash Guard (view 2)Carter's Rash Guard (view 1)
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    Size 12
    $11.99 $9.59 20% off with code THANKU
    60% off estimated retail
    Justice Two Piece Swimsuit (view 2)Justice Two Piece Swimsuit (view 1)
    View Product: Justice Two Piece Swimsuit

    Justice

    Two Piece Swimsuit
    Size 12
    $17.99 $11.69 35% off with code THANKU
    45% off estimated retail
    Justice Two Piece Swimsuit (view 2)Justice Two Piece Swimsuit (view 1)
    View Product: Justice Two Piece Swimsuit

    Justice

    Two Piece Swimsuit
    Size 12
    $14.99 $10.49 30% off with code THANKU
    54% off estimated retail
    Jacques Moret One Piece Swimsuit (view 2)Jacques Moret One Piece Swimsuit (view 1)
    View Product: Jacques Moret One Piece Swimsuit

    Jacques Moret

    One Piece Swimsuit
    Size 12
    $7.99 $6.39 20% off with code THANKU
    50% 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 12
    $7.99 $6.39 20% off with code THANKU
    75% off estimated retail
    Eddie Bauer One Piece Swimsuit (view 2)Eddie Bauer One Piece Swimsuit (view 1)
    View Product: Eddie Bauer One Piece Swimsuit

    Eddie Bauer

    One Piece Swimsuit
    Size 12
    $12.99 $10.39 20% off with code THANKU
    60% off estimated retail
    PilyQ Two Piece Swimsuit (view 2)PilyQ Two Piece Swimsuit (view 1)
    View Product: PilyQ Two Piece Swimsuit

    PilyQ

    Two Piece Swimsuit
    Size 12
    $26.99 $18.89 30% off with code THANKU
    72% off estimated retail
    Unbranded Rash Guard (view 2)Unbranded Rash Guard (view 1)
    View Product: Unbranded Rash Guard

    Unbranded

    Rash Guard
    Size 12
    $11.99 $9.59 20% off with code THANKU
    63% off estimated retail
    Seafolly Board Shorts (view 2)Seafolly Board Shorts (view 1)
    View Product: Seafolly Board Shorts

    Seafolly

    Board Shorts
    Size 12
    $15.99 $10.39 35% off with code THANKU
    51% off estimated retail
    Penelope Mack Rash Guard (view 2)Penelope Mack Rash Guard (view 1)
    View Product: Penelope Mack Rash Guard

    Penelope Mack

    Rash Guard
    Size 12
    $16.99 $12.74 25% off with code THANKU
    48% off estimated retail
    Justice Rash Guard (view 2)Justice Rash Guard (view 1)
    View Product: Justice Rash Guard

    Justice

    Rash Guard
    Size 12
    $17.99 $11.69 35% off with code THANKU
    45% 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 12
    $18.99 $14.24 25% off with code THANKU
    42% off estimated retail
    Younghearts One Piece Swimsuit (view 2)Younghearts One Piece Swimsuit (view 1)Price Drop
    View Product: Younghearts One Piece Swimsuit

    Younghearts

    One Piece Swimsuit
    Size 12
    $8.99 $7.19 20% off with code THANKU
    64% off estimated retail
    Vince Camuto One Piece Swimsuit (view 2)Vince Camuto One Piece Swimsuit (view 1)Price Drop
    View Product: Vince Camuto One Piece Swimsuit

    Vince Camuto

    One Piece Swimsuit
    Size 12
    $11.99 $9.59 20% off with code THANKU
    70% off estimated retail
    Crewcuts One Piece Swimsuit (view 2)Crewcuts One Piece Swimsuit (view 1)Price Drop
    View Product: Crewcuts One Piece Swimsuit

    Crewcuts

    One Piece Swimsuit
    Size 12
    $17.99 $10.79 40% off with code THANKU
    63% off estimated retail
    Ivivva Rash Guard (view 2)Ivivva Rash Guard (view 1)Price Drop
    View Product: Ivivva Rash Guard

    Ivivva

    Rash Guard
    Size 12
    $20.99 $13.64 35% off with code THANKU
    57% 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 12
    $14.99 $11.24 25% off with code THANKU
    54% off estimated retail
    xcel Rash Guard (view 2)xcel Rash Guard (view 1)Price Drop
    View Product: xcel Rash Guard

    xcel

    Rash Guard
    Size 12
    $19.99 $14.99 25% off with code THANKU
    59% 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 12
    $10.99 $8.79 20% off with code THANKU
    45% off estimated retail
    UV Skinz Rash Guard (view 2)UV Skinz Rash Guard (view 1)Price Drop
    View Product: UV Skinz Rash Guard

    UV Skinz

    Rash Guard
    Size 12
    $10.99 $8.79 20% off with code THANKU
    73% off estimated retail
    Snapper Rock Rash Guard (view 2)Snapper Rock Rash Guard (view 1)Price Drop
    View Product: Snapper Rock Rash Guard

    Snapper Rock

    Rash Guard
    Size 12
    $9.99 $7.99 20% off with code THANKU
    60% off estimated retail
    Skechers Rash Guard (view 2)Skechers Rash Guard (view 1)Price Drop
    View Product: Skechers Rash Guard

    Skechers

    Rash Guard
    Size 12
    $8.99 $7.19 20% off with code THANKU
    78% off estimated retail
    Hatley One Piece Swimsuit (view 2)Hatley One Piece Swimsuit (view 1)Price Drop
    View Product: Hatley One Piece Swimsuit

    Hatley

    One Piece Swimsuit
    Size 12
    $7.99 $6.39 20% off with code THANKU
    78% off estimated retail
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