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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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66 items
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    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 8
    $13.99
    57% off estimated retail
    Athleta Two Piece Swimsuit (view 2)Athleta Two Piece Swimsuit (view 1)
    View Product: Athleta Two Piece Swimsuit

    Athleta

    Two Piece Swimsuit
    Size 8
    $25.99
    46% off estimated retail
    SB Two Piece Swimsuit (view 2)SB Two Piece Swimsuit (view 1)
    View Product: SB Two Piece Swimsuit

    SB

    Two Piece Swimsuit
    Size 8
    $9.99
    37% off estimated retail
    Sunshine Swing Two Piece Swimsuit (view 2)Sunshine Swing Two Piece Swimsuit (view 1)
    View Product: Sunshine Swing Two Piece Swimsuit

    Sunshine Swing

    Two Piece Swimsuit
    Size 8
    $13.99
    44% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Jessica Simpson Two Piece Swimsuit (view 2)Jessica Simpson Two Piece Swimsuit (view 1)
    View Product: Jessica Simpson Two Piece Swimsuit

    Jessica Simpson

    Two Piece Swimsuit
    Size 8
    $10.99
    60% off estimated retail
    H&M One Piece Swimsuit (view 2)H&M One Piece Swimsuit (view 1)
    View Product: H&M One Piece Swimsuit

    H&M

    One Piece Swimsuit
    Size 8
    $12.99
    35% off estimated retail
    H&M One Piece Swimsuit (view 2)H&M One Piece Swimsuit (view 1)
    View Product: H&M One Piece Swimsuit

    H&M

    One Piece Swimsuit
    Size 8
    $14.99
    35% off estimated retail
    Body Glove Two Piece Swimsuit (view 2)Body Glove Two Piece Swimsuit (view 1)
    View Product: Body Glove Two Piece Swimsuit

    Body Glove

    Two Piece Swimsuit
    Size 8
    $17.99
    56% off estimated retail
    H&M One Piece Swimsuit (view 2)H&M One Piece Swimsuit (view 1)
    View Product: H&M One Piece Swimsuit

    H&M

    One Piece Swimsuit
    Size 8
    $14.99
    35% off estimated retail
    H&M One Piece Swimsuit (view 2)H&M One Piece Swimsuit (view 1)
    View Product: H&M One Piece Swimsuit

    H&M

    One Piece Swimsuit
    Size 8
    $12.99
    45% 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 8
    $21.99
    37% 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 8
    $17.99
    52% off estimated retail
    Motion Wear One Piece Swimsuit (view 2)Motion Wear One Piece Swimsuit (view 1)
    View Product: Motion Wear One Piece Swimsuit

    Motion Wear

    One Piece Swimsuit
    Size 8
    $16.99
    61% 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 8
    $27.99
    36% 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 8
    $19.99
    61% off estimated retail
    Shade Critters Two Piece Swimsuit (view 2)Shade Critters Two Piece Swimsuit (view 1)
    View Product: Shade Critters Two Piece Swimsuit

    Shade Critters

    Two Piece Swimsuit
    Size 8
    $35.99
    72% 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 8
    $19.99
    51% off estimated retail
    Mini Boden Rash Guard (view 2)Mini Boden Rash Guard (view 1)
    View Product: Mini Boden Rash Guard

    Mini Boden

    Rash Guard
    Size 8
    $14.99
    63% off estimated retail
    Unbranded Two Piece Swimsuit (view 2)Unbranded Two Piece Swimsuit (view 1)
    View Product: Unbranded Two Piece Swimsuit

    Unbranded

    Two Piece Swimsuit
    Size 8
    $11.99 $9.59 20% off with code HOTDEAL
    63% 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 8
    $12.99 $10.39 20% off with code HOTDEAL
    66% 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 8
    $22.99 $13.79 40% off with code HOTDEAL
    39% 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 8
    $20.99 $14.69 30% off with code HOTDEAL
    58% off estimated retail
    Tommy Hilfiger One Piece Swimsuit (view 2)Tommy Hilfiger One Piece Swimsuit (view 1)
    View Product: Tommy Hilfiger One Piece Swimsuit

    Tommy Hilfiger

    One Piece Swimsuit
    Size 8
    $14.99 $11.99 20% off with code HOTDEAL
    65% off estimated retail
    IEFIEL Rash Guard (view 2)IEFIEL Rash Guard (view 1)
    View Product: IEFIEL Rash Guard

    IEFIEL

    Rash Guard
    Size 8
    $10.99 $8.79 20% off with code HOTDEAL
    37% off estimated retail
    Gymboree One Piece Swimsuit (view 2)Gymboree One Piece Swimsuit (view 1)
    View Product: Gymboree One Piece Swimsuit

    Gymboree

    One Piece Swimsuit
    Size 8
    $20.99 $15.74 25% off with code HOTDEAL
    37% off estimated retail
    Molo Wetsuit (view 2)Molo Wetsuit (view 1)
    View Product: Molo Wetsuit

    Molo

    Wetsuit
    Size 8
    $50.99 $33.14 35% off with code HOTDEAL
    75% off estimated retail
    Hurley Rash Guard (view 2)Hurley Rash Guard (view 1)
    View Product: Hurley Rash Guard

    Hurley

    Rash Guard
    Size 8
    $33.99 $20.39 40% off with code HOTDEAL
    68% off estimated retail
    Unbranded Two Piece Swimsuit (view 2)Unbranded Two Piece Swimsuit (view 1)
    View Product: Unbranded Two Piece Swimsuit

    Unbranded

    Two Piece Swimsuit
    Size 8
    $11.99 $9.59 20% off with code HOTDEAL
    66% off estimated retail
    UV Skinz Rash Guard (view 2)UV Skinz Rash Guard (view 1)
    View Product: UV Skinz Rash Guard

    UV Skinz

    Rash Guard
    Size 8
    $20.99 $15.74 25% off with code HOTDEAL
    58% 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 8
    $16.99 $11.04 35% off with code HOTDEAL
    51% off estimated retail
    Art Class Rash Guard (view 2)Art Class Rash Guard (view 1)
    View Product: Art Class Rash Guard

    Art Class

    Rash Guard
    Size 8
    $13.99 $10.49 25% off with code HOTDEAL
    40% off estimated retail
    Kanu Surf Rash Guard (view 2)Kanu Surf Rash Guard (view 1)
    View Product: Kanu Surf Rash Guard

    Kanu Surf

    Rash Guard
    Size 8
    $21.99 $15.39 30% off with code HOTDEAL
    45% off estimated retail
    Mirella One Piece Swimsuit (view 2)Mirella One Piece Swimsuit (view 1)
    View Product: Mirella One Piece Swimsuit

    Mirella

    One Piece Swimsuit
    Size 8
    $16.99 $13.59 20% off with code HOTDEAL
    61% 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 8
    $10.99 $8.79 20% off with code HOTDEAL
    47% off estimated retail
    Roxy Girl Rash Guard (view 2)Roxy Girl Rash Guard (view 1)
    View Product: Roxy Girl Rash Guard

    Roxy Girl

    Rash Guard
    Size 8
    $15.99 $11.19 30% off with code HOTDEAL
    60% off estimated retail
    Mott 50 Rash Guard (view 2)Mott 50 Rash Guard (view 1)
    View Product: Mott 50 Rash Guard

    Mott 50

    Rash Guard
    Size 8
    $23.99 $19.19 20% off with code HOTDEAL
    67% 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 8
    $42.99 $25.79 40% off with code HOTDEAL
    46% off estimated retail
    Little Peixoto Two Piece Swimsuit (view 2)Little Peixoto Two Piece Swimsuit (view 1)
    View Product: Little Peixoto Two Piece Swimsuit

    Little Peixoto

    Two Piece Swimsuit
    Size 8
    $24.99 $17.49 30% off with code HOTDEAL
    63% off estimated retail
    Gap Kids Board Shorts (view 2)Gap Kids Board Shorts (view 1)
    View Product: Gap Kids Board Shorts

    Gap Kids

    Board Shorts
    Size 8
    $10.99 $7.69 30% off with code HOTDEAL
    65% 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 8
    $18.99 $11.39 40% off with code HOTDEAL
    44% 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 8
    $11.99 $9.59 20% off with code HOTDEAL
    50% 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 8
    $16.99 $13.59 20% off with code HOTDEAL
    53% off estimated retail
    Kanu Surf Rash Guard (view 2)Kanu Surf Rash Guard (view 1)
    View Product: Kanu Surf Rash Guard

    Kanu Surf

    Rash Guard
    Size 8
    $18.99 $15.19 20% off with code HOTDEAL
    51% off estimated retail
    Aqua Sphere One Piece Swimsuit (view 2)Aqua Sphere One Piece Swimsuit (view 1)
    View Product: Aqua Sphere One Piece Swimsuit

    Aqua Sphere

    One Piece Swimsuit
    Size 8
    $12.99 $10.39 20% off with code HOTDEAL
    25% off estimated retail
    Les Tout Petits One Piece Swimsuit (view 2)Les Tout Petits One Piece Swimsuit (view 1)
    View Product: Les Tout Petits One Piece Swimsuit

    Les Tout Petits

    One Piece Swimsuit
    Size 8
    $21.99 $17.59 20% off with code HOTDEAL
    79% off estimated retail
    Sunshine Swing Rash Guard (view 2)Sunshine Swing Rash Guard (view 1)
    View Product: Sunshine Swing Rash Guard

    Sunshine Swing

    Rash Guard
    Size 8
    $11.99 $9.59 20% off with code HOTDEAL
    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 8
    $14.99 $11.24 25% off with code HOTDEAL
    57% off estimated retail
    Zara Kids Two Piece Swimsuit (view 2)Zara Kids Two Piece Swimsuit (view 1)
    View Product: Zara Kids Two Piece Swimsuit

    Zara Kids

    Two Piece Swimsuit
    Size 8
    $13.99 $11.19 20% off with code HOTDEAL
    70% off estimated retail
    Calypso St. Barth One Piece Swimsuit (view 2)Calypso St. Barth One Piece Swimsuit (view 1)
    View Product: Calypso St. Barth One Piece Swimsuit

    Calypso St. Barth

    One Piece Swimsuit
    Size 8
    $31.99 $23.99 25% off with code HOTDEAL
    79% off estimated retail
    Sunshine Swing Two Piece Swimsuit (view 2)Sunshine Swing Two Piece Swimsuit (view 1)
    View Product: Sunshine Swing Two Piece Swimsuit

    Sunshine Swing

    Two Piece Swimsuit
    Size 8
    $21.99 $16.49 25% off with code HOTDEAL
    53% off estimated retail
    Under Armour Rash Guard (view 2)Under Armour Rash Guard (view 1)Price Drop
    View Product: Under Armour Rash Guard

    Under Armour

    Rash Guard
    Size 8
    $20.99 $14.69 30% off with code HOTDEAL
    58% off estimated retail
    boo gemes Swimsuit Cover Up (view 2)boo gemes Swimsuit Cover Up (view 1)Price Drop
    View Product: boo gemes Swimsuit Cover Up

    boo gemes

    Swimsuit Cover Up
    Size 8
    $30.99 $20.14 35% off with code HOTDEAL
    64% off estimated retail
    Big Chill Rash Guard (view 2)Big Chill Rash Guard (view 1)
    View Product: Big Chill Rash Guard

    Big Chill

    Rash Guard
    Size 8
    $13.99 $9.09 35% off with code HOTDEAL
    25% off estimated retail
    Gossip Girl One Piece Swimsuit (view 2)Gossip Girl One Piece Swimsuit (view 1)Price Drop
    View Product: Gossip Girl One Piece Swimsuit

    Gossip Girl

    One Piece Swimsuit
    Size 8
    $20.99 $12.59 40% off with code HOTDEAL
    45% off estimated retail
    Ivivva One Piece Swimsuit (view 2)Ivivva One Piece Swimsuit (view 1)Price Drop
    View Product: Ivivva One Piece Swimsuit

    Ivivva

    One Piece Swimsuit
    Size 8
    $22.99 $10.35 55% off with code HOTDEAL
    59% off estimated retail
    Adidas Rash Guard (view 2)Adidas Rash Guard (view 1)Price Drop
    View Product: Adidas Rash Guard

    Adidas

    Rash Guard
    Size 8
    $14.99 $8.99 40% off with code HOTDEAL
    70% 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 8
    $23.99
    39% 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 8
    $18.99
    51% off estimated retail
    Gap Kids One Piece Swimsuit (view 2)Gap Kids One Piece Swimsuit (view 1)Price Drop
    View Product: Gap Kids One Piece Swimsuit

    Gap Kids

    One Piece Swimsuit
    Size 8
    $21.99
    58% off estimated retail
    Gerry Swimsuit Cover Up (view 2)Gerry Swimsuit Cover Up (view 1)Price Drop
    View Product: Gerry Swimsuit Cover Up

    Gerry

    Swimsuit Cover Up
    Size 8
    $25.99
    36% off estimated retail
    Maaji Rash Guard (view 2)Maaji Rash Guard (view 1)Price Drop
    View Product: Maaji Rash Guard

    Maaji

    Rash Guard
    Size 8
    $15.99 $8.79 45% off with code HOTDEAL
    87% off estimated retail
    Fire & Ice Two Piece Swimsuit (view 2)Fire & Ice Two Piece Swimsuit (view 1)New With Tags
    View Product: Fire & Ice Two Piece Swimsuit

    Fire & Ice

    Two Piece Swimsuit
    Size 8
    $13.99
    18% off estimated retail
    Lands' End Two Piece Swimsuit (view 2)Lands' End Two Piece Swimsuit (view 1)Price Drop
    View Product: Lands' End Two Piece Swimsuit

    Lands' End

    Two Piece Swimsuit
    Size 8
    $19.24 $7.70 60% off with code HOTDEAL
    51% off estimated retail
    Justice One Piece Swimsuit (view 2)Justice One Piece Swimsuit (view 1)Price Drop
    View Product: Justice One Piece Swimsuit

    Justice

    One Piece Swimsuit
    Size 8
    $23.99 $8.40 65% off with code HOTDEAL
    42% off estimated retail
    IEFIEL One Piece Swimsuit (view 2)IEFIEL One Piece Swimsuit (view 1)Price Drop
    View Product: IEFIEL One Piece Swimsuit

    IEFIEL

    One Piece Swimsuit
    Size 8
    $9.99 $5.99 40% off with code HOTDEAL
    37% off estimated retail
    Assorted Brands Swimsuit Cover Up (view 2)Assorted Brands Swimsuit Cover Up (view 1)Price Drop
    View Product: Assorted Brands Swimsuit Cover Up

    Assorted Brands

    Swimsuit Cover Up
    Size 8
    $9.99 $4.50 55% off with code HOTDEAL
    72% off estimated retail
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