About
ThredUp LogoThredUp
Shop
SellCleanout animation
Beta
My ThredUp
Account
0
Check out

Find girls' one pieces at up to 90% off estimated retail prices when you shop at thredUP. Get pre-loved items from your favorite girls' brands, like Baby Gap and Carter's.

One-PiecesRemove filter3Remove filter
14 items
Sort by:
    Minnow One Piece Swimsuit (view 2)Minnow One Piece Swimsuit (view 1)
    View Product: Minnow One Piece Swimsuit

    Minnow

    One Piece Swimsuit
    Size 3
    $33.99
    58% off estimated retail
    Roxy One Piece Swimsuit (view 2)Roxy One Piece Swimsuit (view 1)
    View Product: Roxy One Piece Swimsuit

    Roxy

    One Piece Swimsuit
    Size 3
    $15.99
    52% 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 3
    $22.99
    52% off estimated retail
    Disney One Piece Swimsuit (view 2)Disney One Piece Swimsuit (view 1)
    View Product: Disney One Piece Swimsuit

    Disney

    One Piece Swimsuit
    Size 3
    $14.99
    42% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Sunuva One Piece Swimsuit (view 2)Sunuva One Piece Swimsuit (view 1)
    View Product: Sunuva One Piece Swimsuit

    Sunuva

    One Piece Swimsuit
    Size 3
    $17.99
    69% 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 3
    $14.99
    11% 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 3
    $16.99
    58% 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 3
    $15.99 $11.99 25% off with code HOTDEAL
    68% 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 3
    $12.99 $10.39 20% off with code HOTDEAL
    59% 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 3
    $28.99 $17.39 40% off with code HOTDEAL
    50% off estimated retail
    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 3
    $25.99 $16.89 35% off with code HOTDEAL
    50% 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 3
    $21.99 $14.29 35% off with code HOTDEAL
    62% off estimated retail
    Kenzo Kids One Piece Swimsuit (view 2)Kenzo Kids One Piece Swimsuit (view 1)
    View Product: Kenzo Kids One Piece Swimsuit

    Kenzo Kids

    One Piece Swimsuit
    Size 3
    $44.99 $33.74 25% off with code HOTDEAL
    62% off estimated retail
    Olivier London One Piece Swimsuit (view 2)Olivier London One Piece Swimsuit (view 1)Price Drop
    View Product: Olivier London One Piece Swimsuit

    Olivier London

    One Piece Swimsuit
    Size 3
    $27.99 $18.19 35% off with code HOTDEAL
    63% off estimated retail
    Back
    1
    Next

    Loading...