About
ThredUp LogoThredUp
Shop
SellCleanout animation
Beta
My ThredUp
Account
0

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.

5TRemove filter2Remove filter
67 items
Sort by:
    Gap Kids Two Piece Swimsuit (view 2)Gap Kids Two Piece Swimsuit (view 1)
    View Product: Gap Kids Two Piece Swimsuit

    Gap Kids

    Two Piece Swimsuit
    Size 2
    $9.99
    63% off estimated retail
    Pokemon One Piece Swimsuit (view 2)Pokemon One Piece Swimsuit (view 1)
    View Product: Pokemon One Piece Swimsuit

    Pokemon

    One Piece Swimsuit
    Size 5T
    $7.99
    42% off estimated retail
    Disney Store One Piece Swimsuit (view 2)Disney Store One Piece Swimsuit (view 1)
    View Product: Disney Store One Piece Swimsuit

    Disney Store

    One Piece Swimsuit
    Size 2
    $9.99
    35% off estimated retail
    Baby Boden Rash Guard (view 2)Baby Boden Rash Guard (view 1)
    View Product: Baby Boden Rash Guard

    Baby Boden

    Rash Guard
    Size 2
    $13.99
    48% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    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 5T
    $10.99
    35% 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 5T
    $9.99
    41% off estimated retail
    Lilly Pulitzer Board Shorts (view 2)Lilly Pulitzer Board Shorts (view 1)
    View Product: Lilly Pulitzer Board Shorts

    Lilly Pulitzer

    Board Shorts
    Size 2
    $12.99
    50% off estimated retail
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size 5T
    $8.99
    50% 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 5T
    $9.99
    41% 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 5T
    $9.99
    41% off estimated retail
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size 5T
    $10.99
    38% 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 5T
    $16.99
    56% 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 5T
    $13.99
    17% 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 5T
    $15.99
    23% 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 5T
    $10.99
    35% 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 5T
    $9.99
    41% 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 5T
    $12.99
    35% off estimated retail
    Disney Store Two Piece Swimsuit (view 2)Disney Store Two Piece Swimsuit (view 1)
    View Product: Disney Store Two Piece Swimsuit

    Disney Store

    Two Piece Swimsuit
    Size 2
    $8.99
    35% off estimated retail
    Zara One Piece Swimsuit (view 2)Zara One Piece Swimsuit (view 1)
    View Product: Zara One Piece Swimsuit

    Zara

    One Piece Swimsuit
    Size 2
    $9.99
    54% 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 2
    $6.99
    46% 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 5T
    $10.99
    35% off estimated retail
    Shade Critters Rash Guard (view 2)Shade Critters Rash Guard (view 1)
    View Product: Shade Critters Rash Guard

    Shade Critters

    Rash Guard
    Size 5T
    $18.99
    65% off estimated retail
    JoJo Maman Bebe One Piece Swimsuit (view 2)JoJo Maman Bebe One Piece Swimsuit (view 1)
    View Product: JoJo Maman Bebe One Piece Swimsuit

    JoJo Maman Bebe

    One Piece Swimsuit
    Size 2
    $12.99
    66% off estimated retail
    Peppa Pig One Piece Swimsuit (view 2)Peppa Pig One Piece Swimsuit (view 1)
    View Product: Peppa Pig One Piece Swimsuit

    Peppa Pig

    One Piece Swimsuit
    Size 5T
    $13.99 $14
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size 5T
    $9.99
    44% off estimated retail
    New York One Piece Swimsuit (view 2)New York One Piece Swimsuit (view 1)
    View Product: New York One Piece Swimsuit

    New York

    One Piece Swimsuit
    Size 5T
    $8.99
    42% 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 5T
    $11.99
    41% off estimated retail
    Shade Critters One Piece Swimsuit (view 2)Shade Critters One Piece Swimsuit (view 1)
    View Product: Shade Critters One Piece Swimsuit

    Shade Critters

    One Piece Swimsuit
    Size 5T
    $26.99
    60% off estimated retail
    Shade Critters Swimsuit Cover Up (view 2)Shade Critters Swimsuit Cover Up (view 1)
    View Product: Shade Critters Swimsuit Cover Up

    Shade Critters

    Swimsuit Cover Up
    Size 5T
    $19.99
    63% 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 5T
    $23.99 $17.99 25% off with code HOTDEAL
    25% off estimated retail
    Elowel One Piece Swimsuit (view 2)Elowel One Piece Swimsuit (view 1)
    View Product: Elowel One Piece Swimsuit

    Elowel

    One Piece Swimsuit
    Size 2
    $8.99 $7.19 20% off with code HOTDEAL
    27% off estimated retail
    Tucker + Tate One Piece Swimsuit (view 2)Tucker + Tate One Piece Swimsuit (view 1)
    View Product: Tucker + Tate One Piece Swimsuit

    Tucker + Tate

    One Piece Swimsuit
    Size 2
    $13.99 $11.19 20% off with code HOTDEAL
    55% off estimated retail
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size 5T
    $11.99 $9.59 20% off with code HOTDEAL
    38% off estimated retail
    Zimmermann One Piece Swimsuit (view 2)Zimmermann One Piece Swimsuit (view 1)
    View Product: Zimmermann One Piece Swimsuit

    Zimmermann

    One Piece Swimsuit
    Size 2
    $78.99 $59.24 25% off with code HOTDEAL
    34% 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 5T
    $22.99 $17.24 25% off with code HOTDEAL
    29% 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 2
    $9.99 $7.99 20% off with code HOTDEAL
    59% off estimated retail
    Baby Gap One Piece Swimsuit (view 2)Baby Gap One Piece Swimsuit (view 1)
    View Product: Baby Gap One Piece Swimsuit

    Baby Gap

    One Piece Swimsuit
    Size 2
    $17.99 $13.49 25% off with code HOTDEAL
    44% off estimated retail
    PatPat One Piece Swimsuit (view 2)PatPat One Piece Swimsuit (view 1)
    View Product: PatPat One Piece Swimsuit

    PatPat

    One Piece Swimsuit
    Size 2
    $10.99 $8.79 20% off with code HOTDEAL
    $11
    Gymboree One Piece Swimsuit (view 2)Gymboree One Piece Swimsuit (view 1)
    View Product: Gymboree One Piece Swimsuit

    Gymboree

    One Piece Swimsuit
    Size 2
    $22.99 $18.39 20% off with code HOTDEAL
    29% 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 2
    $9.99 $7.99 20% off with code HOTDEAL
    59% off estimated retail
    Unbranded Rash Guard (view 2)Unbranded Rash Guard (view 1)
    View Product: Unbranded Rash Guard

    Unbranded

    Rash Guard
    Size 2
    $11.99 $9.59 20% off with code HOTDEAL
    50% off estimated retail
    Little Peixoto Rash Guard (view 2)Little Peixoto Rash Guard (view 1)
    View Product: Little Peixoto Rash Guard

    Little Peixoto

    Rash Guard
    Size 2
    $18.99 $14.24 25% off with code HOTDEAL
    61% off estimated retail
    Peixoto Two Piece Swimsuit (view 2)Peixoto Two Piece Swimsuit (view 1)
    View Product: Peixoto Two Piece Swimsuit

    Peixoto

    Two Piece Swimsuit
    Size 2
    $25.99 $20.79 20% off with code HOTDEAL
    61% off estimated retail
    Peixoto Two Piece Swimsuit (view 2)Peixoto Two Piece Swimsuit (view 1)
    View Product: Peixoto Two Piece Swimsuit

    Peixoto

    Two Piece Swimsuit
    Size 2
    $23.99 $19.19 20% off with code HOTDEAL
    61% off estimated retail
    Hunter Rash Guard (view 2)Hunter Rash Guard (view 1)
    View Product: Hunter Rash Guard

    Hunter

    Rash Guard
    Size 2
    $13.99 $11.19 20% off with code HOTDEAL
    74% off estimated retail
    Gap Board Shorts (view 2)Gap Board Shorts (view 1)
    View Product: Gap Board Shorts

    Gap

    Board Shorts
    Size 5T
    $11.99 $8.39 30% off with code HOTDEAL
    66% off estimated retail
    Creamie One Piece Swimsuit (view 2)Creamie One Piece Swimsuit (view 1)
    View Product: Creamie One Piece Swimsuit

    Creamie

    One Piece Swimsuit
    Size 2
    $19.99 $14.99 25% off with code HOTDEAL
    45% 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 2
    $14.99 $11.99 20% off with code HOTDEAL
    66% off estimated retail
    Snapper Rock Wetsuit (view 2)Snapper Rock Wetsuit (view 1)
    View Product: Snapper Rock Wetsuit

    Snapper Rock

    Wetsuit
    Size 2
    $23.99 $17.99 25% off with code HOTDEAL
    39% 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 2
    $10.99 $7.14 35% off with code HOTDEAL
    37% 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 5T
    $21.99 $13.19 40% off with code HOTDEAL
    53% off estimated retail
    Les Tout Petits One Piece Swimsuit (view 2)Les Tout Petits One Piece Swimsuit (view 1)Price Drop
    View Product: Les Tout Petits One Piece Swimsuit

    Les Tout Petits

    One Piece Swimsuit
    Size 2
    $16.99 $9.34 45% off with code HOTDEAL
    76% 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 2
    $12.99 $7.79 40% off with code HOTDEAL
    66% off estimated retail
    H&M Two Piece Swimsuit (view 2)H&M Two Piece Swimsuit (view 1)Price Drop
    View Product: H&M Two Piece Swimsuit

    H&M

    Two Piece Swimsuit
    Size 5T
    $12.99 $7.79 40% off with code HOTDEAL
    25% off estimated retail
    Egg Baby Two Piece Swimsuit (view 2)Egg Baby Two Piece Swimsuit (view 1)Price Drop
    View Product: Egg Baby Two Piece Swimsuit

    Egg Baby

    Two Piece Swimsuit
    Size 2
    $10.99 $6.59 40% off with code HOTDEAL
    54% 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 2
    $11.99 $7.19 40% off with code HOTDEAL
    37% 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 2
    $13.24 $7.94 40% off with code HOTDEAL
    50% off estimated retail
    Beau Loves One Piece Swimsuit (view 2)Beau Loves One Piece Swimsuit (view 1)Price Drop
    View Product: Beau Loves One Piece Swimsuit

    Beau Loves

    One Piece Swimsuit
    Size 2
    $13.99 $8.39 40% off with code HOTDEAL
    66% off estimated retail
    Tea One Piece Swimsuit (view 2)Tea One Piece Swimsuit (view 1)Price Drop
    View Product: Tea One Piece Swimsuit

    Tea

    One Piece Swimsuit
    Size 2
    $15.99 $8.79 45% off with code HOTDEAL
    77% off estimated retail
    98 Coast Av. Two Piece Swimsuit (view 2)98 Coast Av. Two Piece Swimsuit (view 1)Price Drop
    View Product: 98 Coast Av. Two Piece Swimsuit

    98 Coast Av.

    Two Piece Swimsuit
    Size 2
    $17.99 $10.79 40% off with code HOTDEAL
    84% 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 2
    $11.99
    50% off estimated retail
    Just One You Made by Carter's Rash Guard (view 2)Just One You Made by Carter's Rash Guard (view 1)Price Drop
    View Product: Just One You Made by Carter's Rash Guard

    Just One You Made by Carter's

    Rash Guard
    Size 5T
    $10.99 $6.59 40% off with code HOTDEAL
    35% off estimated retail
    Gymboree Two Piece Swimsuit (view 2)Gymboree Two Piece Swimsuit (view 1)Price Drop
    View Product: Gymboree Two Piece Swimsuit

    Gymboree

    Two Piece Swimsuit
    Size 5T
    $15.24 $9.14 40% off with code HOTDEAL
    59% off estimated retail
    Penelope Mack One Piece Swimsuit (view 2)Penelope Mack One Piece Swimsuit (view 1)Price Drop
    View Product: Penelope Mack One Piece Swimsuit

    Penelope Mack

    One Piece Swimsuit
    Size 2
    $14.24 $8.54 40% off with code HOTDEAL
    59% 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 2
    $11.24 $6.74 40% off with code HOTDEAL
    43% off estimated retail
    Unbranded Rash Guard (view 2)Unbranded Rash Guard (view 1)Price Drop
    View Product: Unbranded Rash Guard

    Unbranded

    Rash Guard
    Size 2
    $12.24 $7.34 40% off with code HOTDEAL
    54% off estimated retail
    Disney One Piece Swimsuit (view 2)Disney One Piece Swimsuit (view 1)Price Drop
    View Product: Disney One Piece Swimsuit

    Disney

    One Piece Swimsuit
    Size 2
    $14.24 $8.54 40% off with code HOTDEAL
    52% off estimated retail
    Back
    1
    Next

    Loading...