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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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    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Unbranded Rash Guard (view 2)Unbranded Rash Guard (view 1)Price Drop
    View Product: Unbranded Rash Guard

    Unbranded

    Rash Guard
    Size Small infants
    $9.99 $5.49 45% off with code GOBIG
    54% off estimated retail
    Gerry Board Shorts (view 2)Gerry Board Shorts (view 1)
    View Product: Gerry Board Shorts

    Gerry

    Board Shorts
    Size Large infants
    $6.99 $3.84 45% off with code GOBIG
    53% 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
    $9.99 $5.49 45% off with code GOBIG
    33% off estimated retail
    Star Wars Board Shorts (view 2)Star Wars Board Shorts (view 1)
    View Product: Star Wars Board Shorts

    Star Wars

    Board Shorts
    Size Large youth
    $8.99 $4.94 45% off with code GOBIG
    18% off estimated retail
    Speedo Board Shorts (view 2)Speedo Board Shorts (view 1)
    View Product: Speedo Board Shorts

    Speedo

    Board Shorts
    Size Small infants
    $8.99 $4.94 45% off with code GOBIG
    18% off estimated retail
    Kanu Surf Board Shorts (view 2)Kanu Surf Board Shorts (view 1)Price Drop
    View Product: Kanu Surf Board Shorts

    Kanu Surf

    Board Shorts
    Size Large infants
    $7.99 $4.39 45% off with code GOBIG
    46% off estimated retail
    Kanu Surf Board Shorts (view 2)Kanu Surf Board Shorts (view 1)Price Drop
    View Product: Kanu Surf Board Shorts

    Kanu Surf

    Board Shorts
    Size Small infants
    $7.99 $4.39 45% off with code GOBIG
    46% off estimated retail