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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.

2,091 items
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    Decathlon Creation Rash Guard (view 2)Decathlon Creation Rash Guard (view 1)Price Drop
    View Product: Decathlon Creation Rash Guard

    Decathlon Creation

    Rash Guard
    Size Medium youth
    $15.99 $9.59 40% off with code HOTDEAL
    80% off estimated retail
    Water Wears One Piece Swimsuit (view 2)Water Wears One Piece Swimsuit (view 1)Price Drop
    View Product: Water Wears One Piece Swimsuit

    Water Wears

    One Piece Swimsuit
    Size 6-12 mo
    $12.24 $7.34 40% off with code HOTDEAL
    55% off estimated retail
    Carter's One Piece Swimsuit (view 2)Carter's One Piece Swimsuit (view 1)Price Drop
    View Product: Carter's One Piece Swimsuit

    Carter's

    One Piece Swimsuit
    Size 24 mo
    $13.24 $7.94 40% off with code HOTDEAL
    73% 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 18-24 mo
    $12.24 $7.34 40% off with code HOTDEAL
    64% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Carter's Two Piece Swimsuit (view 2)Carter's Two Piece Swimsuit (view 1)Price Drop
    View Product: Carter's Two Piece Swimsuit

    Carter's

    Two Piece Swimsuit
    Size 6 mo
    $12.24 $7.34 40% off with code HOTDEAL
    67% off estimated retail
    OshKosh B'gosh Two Piece Swimsuit (view 2)OshKosh B'gosh Two Piece Swimsuit (view 1)Price Drop
    View Product: OshKosh B'gosh Two Piece Swimsuit

    OshKosh B'gosh

    Two Piece Swimsuit
    Size 12 mo
    $10.99 $6.59 40% off with code HOTDEAL
    59% 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
    $9.24 $5.54 40% off with code HOTDEAL
    68% 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
    $9.24 $5.54 40% off with code HOTDEAL
    46% 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 12-18 mo
    $11.24 $6.74 40% off with code HOTDEAL
    65% off estimated retail
    Carter's One Piece Swimsuit (view 2)Carter's One Piece Swimsuit (view 1)Price Drop
    View Product: Carter's One Piece Swimsuit

    Carter's

    One Piece Swimsuit
    Size 12 mo
    $11.24 $6.74 40% off with code HOTDEAL
    73% off estimated retail
    Carter's Rash Guard (view 2)Carter's Rash Guard (view 1)Price Drop
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    Size 24 mo
    $12.24 $7.34 40% off with code HOTDEAL
    62% off estimated retail
    Forever 21 Swimsuit Cover Up (view 2)Forever 21 Swimsuit Cover Up (view 1)Price Drop
    View Product: Forever 21 Swimsuit Cover Up

    Forever 21

    Swimsuit Cover Up
    Size Small tots
    $11.24 $6.18 45% off with code HOTDEAL
    10% 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
    $9.24 $5.54 40% off with code HOTDEAL
    20% 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 24 mo
    $12.24 $7.34 40% off with code HOTDEAL
    60% 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 12 mo
    $11.24 $6.74 40% off with code HOTDEAL
    55% 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 0-3 mo
    $11.24 $6.74 40% off with code HOTDEAL
    55% off estimated retail
    Unbranded Two Piece Swimsuit (view 2)Unbranded Two Piece Swimsuit (view 1)Price Drop
    View Product: Unbranded Two Piece Swimsuit

    Unbranded

    Two Piece Swimsuit
    Size 12 mo
    $11.24 $6.74 40% off with code HOTDEAL
    55% off estimated retail
    H&M One Piece Swimsuit (view 2)H&M One Piece Swimsuit (view 1)Price Drop
    View Product: H&M One Piece Swimsuit

    H&M

    One Piece Swimsuit
    Size 6-12 mo
    $10.24 $6.14 40% off with code HOTDEAL
    46% off estimated retail
    Baby Gap Swimsuit Cover Up (view 2)Baby Gap Swimsuit Cover Up (view 1)Price Drop
    View Product: Baby Gap Swimsuit Cover Up

    Baby Gap

    Swimsuit Cover Up
    Size 12-18 mo
    $10.24 $6.14 40% off with code HOTDEAL
    60% off estimated retail
    Baby Gap One Piece Swimsuit (view 2)Baby Gap One Piece Swimsuit (view 1)Price Drop
    View Product: Baby Gap One Piece Swimsuit

    Baby Gap

    One Piece Swimsuit
    Size Small infants
    $15.24 $9.14 40% off with code HOTDEAL
    68% 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
    $11.24 $6.74 40% off with code HOTDEAL
    64% off estimated retail
    Carter's One Piece Swimsuit (view 2)Carter's One Piece Swimsuit (view 1)Price Drop
    View Product: Carter's One Piece Swimsuit

    Carter's

    One Piece Swimsuit
    Size 12 mo
    $12.24 $7.34 40% off with code HOTDEAL
    70% off estimated retail
    Planet Sea Swimsuit Cover Up (view 2)Planet Sea Swimsuit Cover Up (view 1)Price Drop
    View Product: Planet Sea Swimsuit Cover Up

    Planet Sea

    Swimsuit Cover Up
    Size 6
    $12.24 $7.34 40% off with code HOTDEAL
    60% off estimated retail
    Carter's Rash Guard (view 2)Carter's Rash Guard (view 1)Price Drop
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    Size 24 mo
    $11.24 $6.74 40% off with code HOTDEAL
    66% 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 $5.99 40% off with code HOTDEAL
    30% off estimated retail
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)Price Drop
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size 12-18 mo
    $11.24 $6.74 40% off with code HOTDEAL
    47% off estimated retail
    Carter's Two Piece Swimsuit (view 2)Carter's Two Piece Swimsuit (view 1)Price Drop
    View Product: Carter's Two Piece Swimsuit

    Carter's

    Two Piece Swimsuit
    Size 9 mo
    $11.24 $6.74 40% off with code HOTDEAL
    67% off estimated retail
    Carter's One Piece Swimsuit (view 2)Carter's One Piece Swimsuit (view 1)
    View Product: Carter's One Piece Swimsuit

    Carter's

    One Piece Swimsuit
    Size 3-6 mo
    $7.99 $4.79 40% off with code HOTDEAL
    75% 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 X-Small kids
    $9.99 $5.99 40% off with code HOTDEAL
    30% 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 mo
    $11.24 $6.74 40% off with code HOTDEAL
    62% off estimated retail
    Little Me One Piece Swimsuit (view 2)Little Me One Piece Swimsuit (view 1)
    View Product: Little Me One Piece Swimsuit

    Little Me

    One Piece Swimsuit
    Size 24 mo
    $11.24 $6.74 40% off with code HOTDEAL
    40% 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
    $8.24 $4.94 40% off with code HOTDEAL
    20% off estimated retail
    Unbranded Two Piece Swimsuit (view 2)Unbranded Two Piece Swimsuit (view 1)Price Drop
    View Product: Unbranded Two Piece Swimsuit

    Unbranded

    Two Piece Swimsuit
    Size 24 mo
    $11.24 $6.74 40% off with code HOTDEAL
    55% off estimated retail
    Cat & Jack Rash Guard (view 2)Cat & Jack Rash Guard (view 1)
    View Product: Cat & Jack Rash Guard

    Cat & Jack

    Rash Guard
    Size 4
    $9.99 $5.99 40% off with code HOTDEAL
    30% off estimated retail
    Carter's Two Piece Swimsuit (view 2)Carter's Two Piece Swimsuit (view 1)Price Drop
    View Product: Carter's Two Piece Swimsuit

    Carter's

    Two Piece Swimsuit
    Size 6-12 mo
    $12.24 $7.34 40% off with code HOTDEAL
    73% off estimated retail
    Gymboree Rash Guard (view 2)Gymboree Rash Guard (view 1)
    View Product: Gymboree Rash Guard

    Gymboree

    Rash Guard
    Size 6-12 mo
    $10.99 $6.59 40% off with code HOTDEAL
    59% 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 12-18 mo
    $10.24 $6.14 40% off with code HOTDEAL
    65% off estimated retail
    Gymboree Board Shorts (view 2)Gymboree Board Shorts (view 1)
    View Product: Gymboree Board Shorts

    Gymboree

    Board Shorts
    Size 18-24 mo
    $11.24 $6.74 40% off with code HOTDEAL
    64% off estimated retail
    Dippin Daisy's Swimwear Swimsuit Cover Up (view 2)Dippin Daisy's Swimwear Swimsuit Cover Up (view 1)Price Drop
    View Product: Dippin Daisy's Swimwear Swimsuit Cover Up

    Dippin Daisy's Swimwear

    Swimsuit Cover Up
    Size Small kids
    $11.24 $6.74 40% off with code HOTDEAL
    73% off estimated retail
    Carter's One Piece Swimsuit (view 2)Carter's One Piece Swimsuit (view 1)
    View Product: Carter's One Piece Swimsuit

    Carter's

    One Piece Swimsuit
    Size 12 mo
    $11.24 $6.74 40% off with code HOTDEAL
    73% 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 3-6 mo
    $9.24 $5.54 40% off with code HOTDEAL
    65% 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 3-6 mo
    $10.24 $6.14 40% off with code HOTDEAL
    65% off estimated retail
    Baby Gap One Piece Swimsuit (view 2)Baby Gap One Piece Swimsuit (view 1)Price Drop
    View Product: Baby Gap One Piece Swimsuit

    Baby Gap

    One Piece Swimsuit
    Size 3-6 mo
    $10.24 $6.14 40% off with code HOTDEAL
    72% off estimated retail
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)Price Drop
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size 3-6 mo
    $10.24 $6.14 40% off with code HOTDEAL
    58% off estimated retail
    Carter's Rash Guard (view 2)Carter's Rash Guard (view 1)Price Drop
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    Size 6-9 mo
    $10.24 $6.14 40% off with code HOTDEAL
    62% off estimated retail
    Old Navy Board Shorts (view 2)Old Navy Board Shorts (view 1)
    View Product: Old Navy Board Shorts

    Old Navy

    Board Shorts
    Size 6-12 mo
    $10.24 $6.14 40% off with code HOTDEAL
    46% 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 7
    $9.99 $5.99 40% off with code HOTDEAL
    40% off estimated retail
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)Price Drop
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size 3-6 mo
    $13.24 $7.94 40% off with code HOTDEAL
    47% off estimated retail
    Carter's Rash Guard (view 2)Carter's Rash Guard (view 1)Price Drop
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    Size 24 mo
    $10.24 $6.14 40% off with code HOTDEAL
    66% 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 mo
    $9.24 $5.54 40% off with code HOTDEAL
    65% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)Price Drop
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size Small infants
    $7.99 $4.79 40% off with code HOTDEAL
    65% off estimated retail
    Floatimini One Piece Swimsuit (view 2)Floatimini One Piece Swimsuit (view 1)Price Drop
    View Product: Floatimini One Piece Swimsuit

    Floatimini

    One Piece Swimsuit
    Size 12-18 mo
    $8.24 $4.94 40% off with code HOTDEAL
    86% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)Price Drop
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 12-18 mo
    $8.99 $5.39 40% off with code HOTDEAL
    60% 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 Small infants
    $7.99 $4.79 40% off with code HOTDEAL
    65% 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 14
    $7.99 $4.79 40% off with code HOTDEAL
    77% off estimated retail
    Op One Piece Swimsuit (view 2)Op One Piece Swimsuit (view 1)Price Drop
    View Product: Op One Piece Swimsuit

    Op

    One Piece Swimsuit
    Size 18 mo
    $8.99 $5.39 40% off with code HOTDEAL
    20% 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 Small infants
    $8.99 $5.39 40% off with code HOTDEAL
    20% off estimated retail
    Koala Kids One Piece Swimsuit (view 2)Koala Kids One Piece Swimsuit (view 1)Price Drop
    View Product: Koala Kids One Piece Swimsuit

    Koala Kids

    One Piece Swimsuit
    Size 6 mo
    $8.99 $5.39 40% off with code HOTDEAL
    20% 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 6-9 mo
    $8.99 $5.39 40% off with code HOTDEAL
    60% off estimated retail
    Circo One Piece Swimsuit (view 2)Circo One Piece Swimsuit (view 1)Price Drop
    View Product: Circo One Piece Swimsuit

    Circo

    One Piece Swimsuit
    Size 18 mo
    $8.99 $5.39 40% off with code HOTDEAL
    38% off estimated retail
    Carter's One Piece Swimsuit (view 2)Carter's One Piece Swimsuit (view 1)Price Drop
    View Product: Carter's One Piece Swimsuit

    Carter's

    One Piece Swimsuit
    Size 6-9 mo
    $8.99 $5.39 40% off with code HOTDEAL
    71% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)Price Drop
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 6-9 mo
    $8.99 $5.39 40% off with code HOTDEAL
    60% off estimated retail
    Old Navy Outlet One Piece Swimsuit (view 2)Old Navy Outlet One Piece Swimsuit (view 1)Price Drop
    View Product: Old Navy Outlet One Piece Swimsuit

    Old Navy Outlet

    One Piece Swimsuit
    Size 12-18 mo
    $8.99 $5.39 40% off with code HOTDEAL
    20% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)Price Drop
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 3-6 mo
    $8.99 $5.39 40% off with code HOTDEAL
    60% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)Price Drop
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size Small infants
    $8.99 $5.39 40% off with code HOTDEAL
    60% 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 6-9 mo
    $8.24 $4.94 40% off with code HOTDEAL
    65% 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 6-12 mo
    $8.24 $4.94 40% off with code HOTDEAL
    65% off estimated retail
    Old Navy Board Shorts (view 2)Old Navy Board Shorts (view 1)Price Drop
    View Product: Old Navy Board Shorts

    Old Navy

    Board Shorts
    Size 0-3 mo
    $8.99 $5.39 40% off with code HOTDEAL
    38% off estimated retail
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