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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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    Hanna Andersson Wetsuit (view 2)Hanna Andersson Wetsuit (view 1)
    View Product: Hanna Andersson Wetsuit

    Hanna Andersson

    Wetsuit
    Size 3T
    $23.99
    56% off estimated retail
    Hula Bay Rash Guard (view 2)Hula Bay Rash Guard (view 1)
    View Product: Hula Bay Rash Guard

    Hula Bay

    Rash Guard
    Size Medium youth
    $9.99
    50% off estimated retail
    Lands' End Board Shorts (view 2)Lands' End Board Shorts (view 1)
    View Product: Lands' End Board Shorts

    Lands' End

    Board Shorts
    Size X-Large kids
    $15.99
    40% off estimated retail
    Lands' End Board Shorts (view 2)Lands' End Board Shorts (view 1)
    View Product: Lands' End Board Shorts

    Lands' End

    Board Shorts
    Size 14
    $11.99
    54% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Baby Gap Board Shorts (view 2)Baby Gap Board Shorts (view 1)
    View Product: Baby Gap Board Shorts

    Baby Gap

    Board Shorts
    Size 4T
    $10.99
    57% off estimated retail
    Quiksilver Board Shorts (view 2)Quiksilver Board Shorts (view 1)Flawed Gem
    View Product: Quiksilver Board Shorts

    Quiksilver

    Board Shorts
    Size 6
    $10.99
    59% off estimated retail
    Tucker + Tate Wetsuit (view 2)Tucker + Tate Wetsuit (view 1)
    View Product: Tucker + Tate Wetsuit

    Tucker + Tate

    Wetsuit
    Size 12 mo
    $22.99
    65% off estimated retail
    Gap Kids Rash Guard (view 2)Gap Kids Rash Guard (view 1)
    View Product: Gap Kids Rash Guard

    Gap Kids

    Rash Guard
    Size X-Large youth
    $13.99
    55% 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 18 mo
    $21.99
    40% off estimated retail
    Crewcuts Board Shorts (view 2)Crewcuts Board Shorts (view 1)
    View Product: Crewcuts Board Shorts

    Crewcuts

    Board Shorts
    Size 14
    $17.99
    69% off estimated retail
    Gap Board Shorts (view 2)Gap Board Shorts (view 1)
    View Product: Gap Board Shorts

    Gap

    Board Shorts
    Size Small kids
    $11.99
    66% off estimated retail
    Carter's Board Shorts (view 2)Carter's Board Shorts (view 1)
    View Product: Carter's Board Shorts

    Carter's

    Board Shorts
    Size 18 mo
    $13.99 $11.19 20% off with code HOTDEAL
    53% off estimated retail
    UV Skinz Rash Guard (view 2)UV Skinz Rash Guard (view 1)
    View Product: UV Skinz Rash Guard

    UV Skinz

    Rash Guard
    Size 12-18 mo
    $16.99 $12.74 25% off with code HOTDEAL
    48% off estimated retail
    Carter's Rash Guard (view 2)Carter's Rash Guard (view 1)New With Tags
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    Size 6-9 mo
    $10.99 $8.79 20% off with code HOTDEAL
    73% off estimated retail
    Gymboree Rash Guard (view 2)Gymboree Rash Guard (view 1)
    View Product: Gymboree Rash Guard

    Gymboree

    Rash Guard
    Size 3-6 mo
    $16.99 $12.74 25% off with code HOTDEAL
    39% off estimated retail
    Janie and Jack Board Shorts (view 2)Janie and Jack Board Shorts (view 1)
    View Product: Janie and Jack Board Shorts

    Janie and Jack

    Board Shorts
    Size 6-12 mo
    $8.99 $7.19 20% off with code HOTDEAL
    55% off estimated retail
    Tea Board Shorts (view 2)Tea Board Shorts (view 1)
    View Product: Tea Board Shorts

    Tea

    Board Shorts
    Size 6-12 mo
    $18.99 $14.24 25% off with code HOTDEAL
    56% off estimated retail
    Baby Gap Board Shorts (view 2)Baby Gap Board Shorts (view 1)
    View Product: Baby Gap Board Shorts

    Baby Gap

    Board Shorts
    Size 3-6 mo
    $13.99 $11.19 20% off with code HOTDEAL
    42% off estimated retail
    Zadig & Voltaire Rash Guard (view 2)Zadig & Voltaire Rash Guard (view 1)
    View Product: Zadig & Voltaire Rash Guard

    Zadig & Voltaire

    Rash Guard
    Size Small tots
    $31.99 $17.59 45% off with code HOTDEAL
    67% off estimated retail
    OshKosh B'gosh Board Shorts (view 2)OshKosh B'gosh Board Shorts (view 1)
    View Product: OshKosh B'gosh Board Shorts

    OshKosh B'gosh

    Board Shorts
    Size 6-9 mo
    $13.99 $11.19 20% off with code HOTDEAL
    36% off estimated retail
    Janie and Jack Board Shorts (view 2)Janie and Jack Board Shorts (view 1)Price Drop
    View Product: Janie and Jack Board Shorts

    Janie and Jack

    Board Shorts
    Size 6-12 mo
    $13.99 $9.09 35% off with code HOTDEAL
    33% 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
    $10.99 $6.59 40% off with code HOTDEAL
    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
    $10.99 $6.59 40% off with code HOTDEAL
    57% off estimated retail
    Assorted Brands Rash Guard (view 2)Assorted Brands Rash Guard (view 1)Price Drop
    View Product: Assorted Brands Rash Guard

    Assorted Brands

    Rash Guard
    Size 6-12 mo
    $11.99 $7.19 40% off with code HOTDEAL
    54% 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
    $11.99 $7.19 40% off with code HOTDEAL
    61% off estimated retail
    Gymboree Board Shorts (view 2)Gymboree Board Shorts (view 1)Price Drop
    View Product: Gymboree Board Shorts

    Gymboree

    Board Shorts
    Size 6-12 mo
    $11.99 $7.19 40% off with code HOTDEAL
    63% 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
    $11.99 $7.19 40% off with code HOTDEAL
    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
    $11.99 $7.19 40% off with code HOTDEAL
    44% 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
    $12.24 $7.34 40% off with code HOTDEAL
    61% 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 12-18 mo
    $7.99 $4.79 40% off with code HOTDEAL
    50% 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 6-12 mo
    $11.99 $7.19 40% off with code HOTDEAL
    28% 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
    $14.24 $7.83 45% off with code HOTDEAL
    66% 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
    $11.99 $7.19 40% off with code HOTDEAL
    37% 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
    $11.24 $6.74 40% off with code HOTDEAL
    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
    $11.24 $6.74 40% off with code HOTDEAL
    35% 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
    $12.24 $7.34 40% off with code HOTDEAL
    57% off estimated retail
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