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Whether it's a day at the pool or the beach, your little man needs a comfortable and stylish look. At thredUP, you'll find boys' swimwear in a variety of styles, colors, and designs that he will love, and at up to 90% off estimated retail, the prices will make you happy as well.

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    Assorted Brands Wetsuit (view 2)Assorted Brands Wetsuit (view 1)Price Drop
    View Product: Assorted Brands Wetsuit

    Assorted Brands

    Wetsuit
    Size X-Small youth
    $28.99 $23.19 20% off with code THANKU
    55% off estimated retail
    Gymboree Rash Guard (view 2)Gymboree Rash Guard (view 1)Price Drop
    View Product: Gymboree Rash Guard

    Gymboree

    Rash Guard
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    56% off estimated retail
    Abercrombie Board Shorts (view 2)Abercrombie Board Shorts (view 1)Price Drop
    View Product: Abercrombie Board Shorts

    Abercrombie

    Board Shorts
    Size Small infants
    $13.99 $10.49 25% off with code THANKU
    56% off estimated retail
    Florence Eiseman Board Shorts (view 2)Florence Eiseman Board Shorts (view 1)Price Drop
    View Product: Florence Eiseman Board Shorts

    Florence Eiseman

    Board Shorts
    Size 18 mo
    $16.99 $9.34 45% off with code THANKU
    66% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    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 9 mo
    $10.99 $8.79 20% off with code THANKU
    57% 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 3-6 mo
    $8.99 $7.19 20% off with code THANKU
    65% off estimated retail
    Old Navy Rash Guard (view 2)Old Navy Rash Guard (view 1)Price Drop
    View Product: Old Navy Rash Guard

    Old Navy

    Rash Guard
    Size 3-6 mo
    $7.99 $6.39 20% off with code THANKU
    42% off estimated retail
    Essentials Board Shorts (view 2)Essentials Board Shorts (view 1)Price Drop
    View Product: Essentials Board Shorts

    Essentials

    Board Shorts
    Size Small kids
    $9.99 $7.99 20% off with code THANKU
    28% 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 3 mo
    $9.99 $7.99 20% off with code THANKU
    28% off estimated retail
    Carter's Board Shorts (view 2)Carter's Board Shorts (view 1)Price Drop
    View Product: Carter's Board Shorts

    Carter's

    Board Shorts
    Size 18 mo
    $9.99 $7.99 20% off with code THANKU
    61% 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 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    43% off estimated retail
    Gymboree Board Shorts (view 2)Gymboree Board Shorts (view 1)Price Drop
    View Product: Gymboree Board Shorts

    Gymboree

    Board Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    66% 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 mo
    $9.99 $7.99 20% off with code THANKU
    61% off estimated retail
    Crazy 8 Rash Guard (view 2)Crazy 8 Rash Guard (view 1)Price Drop
    View Product: Crazy 8 Rash Guard

    Crazy 8

    Rash Guard
    Size 6-12 mo
    $9.99 $7.99 20% off with code THANKU
    44% off estimated retail
    Baby Gap Board Shorts (view 2)Baby Gap Board Shorts (view 1)Price Drop
    View Product: Baby Gap Board Shorts

    Baby Gap

    Board Shorts
    Size 3-6 mo
    $8.99 $7.19 20% off with code THANKU
    57% 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 9 mo
    $9.99 $7.99 20% off with code THANKU
    61% off estimated retail
    OshKosh B'gosh Rash Guard (view 2)OshKosh B'gosh Rash Guard (view 1)Price Drop
    View Product: OshKosh B'gosh Rash Guard

    OshKosh B'gosh

    Rash Guard
    Size 9 mo
    $9.99 $7.99 20% off with code THANKU
    54% off estimated retail
    OshKosh B'gosh Board Shorts (view 2)OshKosh B'gosh Board Shorts (view 1)Price Drop
    View Product: OshKosh B'gosh Board Shorts

    OshKosh B'gosh

    Board Shorts
    Size 9 mo
    $8.99 $7.19 20% off with code THANKU
    52% off estimated retail
    Freestyle Rash Guard (view 2)Freestyle Rash Guard (view 1)Price Drop
    View Product: Freestyle Rash Guard

    Freestyle

    Rash Guard
    Size 12 mo
    $9.99 $7.99 20% off with code THANKU
    $11
    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 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    43% 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 12 mo
    $9.99 $7.99 20% off with code THANKU
    66% 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
    $8.99 $7.19 20% off with code THANKU
    65% 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 3 mo
    $8.99 $7.19 20% off with code THANKU
    65% off estimated retail
    Gymboree Board Shorts (view 2)Gymboree Board Shorts (view 1)Price Drop
    View Product: Gymboree Board Shorts

    Gymboree

    Board Shorts
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    63% 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 18 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Floatimini Rash Guard (view 2)Floatimini Rash Guard (view 1)Price Drop
    View Product: Floatimini Rash Guard

    Floatimini

    Rash Guard
    Size 3 mo
    $8.99 $7.19 20% off with code THANKU
    83% 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
    $8.99 $7.19 20% off with code THANKU
    65% off estimated retail
    Baby Gap Board Shorts (view 2)Baby Gap Board Shorts (view 1)Price Drop
    View Product: Baby Gap Board Shorts

    Baby Gap

    Board Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    57% off estimated retail
    Baby Gap Rash Guard (view 2)Baby Gap Rash Guard (view 1)Price Drop
    View Product: Baby Gap Rash Guard

    Baby Gap

    Rash Guard
    Size 3 mo
    $8.99 $7.19 20% off with code THANKU
    57% 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 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    43% 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 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    40% 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 mo
    $8.99 $7.19 20% off with code THANKU
    62% 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 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    46% off estimated retail
    Disney Rash Guard (view 2)Disney Rash Guard (view 1)Price Drop
    View Product: Disney Rash Guard

    Disney

    Rash Guard
    Size Newborn
    $7.99 $6.39 20% off with code THANKU
    20% off estimated retail
    Unbranded Board Shorts (view 2)Unbranded Board Shorts (view 1)Price Drop
    View Product: Unbranded Board Shorts

    Unbranded

    Board Shorts
    Size Small infants
    $7.99 $6.39 20% off with code THANKU
    42% off estimated retail
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