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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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    Cat & Jack Board Shorts (view 2)Cat & Jack Board Shorts (view 1)
    View Product: Cat & Jack Board Shorts

    Cat & Jack

    Board Shorts
    Size 8
    $8.99
    30% off estimated retail
    Under Armour Rash Guard (view 2)Under Armour Rash Guard (view 1)
    View Product: Under Armour Rash Guard

    Under Armour

    Rash Guard
    Size Small youth
    $23.99
    41% off estimated retail
    Gerry Board Shorts (view 2)Gerry Board Shorts (view 1)
    View Product: Gerry Board Shorts

    Gerry

    Board Shorts
    Size 10
    $12.99
    40% off estimated retail
    Rip Curl Board Shorts (view 2)Rip Curl Board Shorts (view 1)
    View Product: Rip Curl Board Shorts

    Rip Curl

    Board Shorts
    Size 20
    $13.99 $11.19 20% off with code THANKU
    57% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Unbranded Board Shorts (view 2)Unbranded Board Shorts (view 1)
    View Product: Unbranded Board Shorts

    Unbranded

    Board Shorts
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    46% off estimated retail
    I Play Rash Guard (view 2)I Play Rash Guard (view 1)
    View Product: I Play Rash Guard

    I Play

    Rash Guard
    Size 18 mo
    $6.99 $5.59 20% off with code THANKU
    36% off estimated retail
    iExtreme Board Shorts (view 2)iExtreme Board Shorts (view 1)
    View Product: iExtreme Board Shorts

    iExtreme

    Board Shorts
    Size 24 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)
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    Size 12 mo
    $17.99 $12.59 30% off with code THANKU
    40% off estimated retail
    Assorted Brands Board Shorts (view 2)Assorted Brands Board Shorts (view 1)Price Drop
    View Product: Assorted Brands Board Shorts

    Assorted Brands

    Board Shorts
    Size Small kids
    $8.99 $7.19 20% off with code THANKU
    50% off estimated retail
    UV Skinz Board Shorts (view 2)UV Skinz Board Shorts (view 1)Price Drop
    View Product: UV Skinz Board Shorts

    UV Skinz

    Board Shorts
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    44% 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
    $7.99 $6.39 20% off with code THANKU
    46% 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
    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 3-6 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Gymboree Rash Guard (view 2)Gymboree Rash Guard (view 1)Price Drop
    View Product: Gymboree Rash Guard

    Gymboree

    Rash Guard
    Size 3-6 mo
    $9.99 $7.99 20% off with code THANKU
    56% off estimated retail
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