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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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    Patagonia Board Shorts (view 2)Patagonia Board Shorts (view 1)
    View Product: Patagonia Board Shorts

    Patagonia

    Board Shorts
    Size 8
    $9.99
    63% off estimated retail
    Hurley Board Shorts (view 2)Hurley Board Shorts (view 1)
    View Product: Hurley Board Shorts

    Hurley

    Board Shorts
    Size 5
    $11.99
    55% off estimated retail
    Tea Board Shorts (view 2)Tea Board Shorts (view 1)
    View Product: Tea Board Shorts

    Tea

    Board Shorts
    Size 3
    $17.99
    51% off estimated retail
    Assorted Brands Board Shorts (view 2)Assorted Brands Board Shorts (view 1)
    View Product: Assorted Brands Board Shorts

    Assorted Brands

    Board Shorts
    Size Medium kids
    $11.99
    45% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Gymboree Board Shorts (view 2)Gymboree Board Shorts (view 1)
    View Product: Gymboree Board Shorts

    Gymboree

    Board Shorts
    Size 18-24 mo
    $13.99
    55% off estimated retail
    Active by Old Navy Board Shorts (view 2)Active by Old Navy Board Shorts (view 1)
    View Product: Active by Old Navy Board Shorts

    Active by Old Navy

    Board Shorts
    Size 10
    $12.99
    31% off estimated retail
    Gap X Star Wars Rash Guard (view 2)Gap X Star Wars Rash Guard (view 1)
    View Product: Gap X Star Wars Rash Guard

    Gap X Star Wars

    Rash Guard
    Size X-Small youth
    $22.99
    53% off estimated retail
    Nununu Rash Guard (view 2)Nununu Rash Guard (view 1)
    View Product: Nununu Rash Guard

    Nununu

    Rash Guard
    Size 4
    $17.99 $11.69 35% off with code HOTDEAL
    63% 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 Medium youth
    $23.99 $15.59 35% off with code HOTDEAL
    51% off estimated retail
    Descente Rash Guard (view 2)Descente Rash Guard (view 1)
    View Product: Descente Rash Guard

    Descente

    Rash Guard
    Size 10
    $28.99 $20.29 30% off with code HOTDEAL
    67% 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 18
    $12.99 $10.39 20% off with code HOTDEAL
    40% off estimated retail
    Billabong Board Shorts (view 2)Billabong Board Shorts (view 1)
    View Product: Billabong Board Shorts

    Billabong

    Board Shorts
    Size 5
    $15.99 $11.99 25% off with code HOTDEAL
    43% off estimated retail
    Kuhl Rash Guard (view 2)Kuhl Rash Guard (view 1)
    View Product: Kuhl Rash Guard

    Kuhl

    Rash Guard
    Size Small youth
    $22.99 $17.24 25% off with code HOTDEAL
    61% off estimated retail
    Marvel Board Shorts (view 2)Marvel Board Shorts (view 1)
    View Product: Marvel Board Shorts

    Marvel

    Board Shorts
    Size Small youth
    $8.99 $7.19 20% off with code HOTDEAL
    46% off estimated retail
    Candle Sticks Board Shorts (view 2)Candle Sticks Board Shorts (view 1)
    View Product: Candle Sticks Board Shorts

    Candle Sticks

    Board Shorts
    Size 18 mo
    $6.99 $5.59 20% off with code HOTDEAL
    14% off estimated retail
    Quiksilver Rash Guard (view 2)Quiksilver Rash Guard (view 1)
    View Product: Quiksilver Rash Guard

    Quiksilver

    Rash Guard
    Size 4
    $15.99 $11.99 25% off with code HOTDEAL
    44% off estimated retail
    Assorted Brands Wetsuit (view 2)Assorted Brands Wetsuit (view 1)
    View Product: Assorted Brands Wetsuit

    Assorted Brands

    Wetsuit
    Size Medium kids
    $33.99 $25.49 25% off with code HOTDEAL
    56% off estimated retail
    Assorted Brands Board Shorts (view 2)Assorted Brands Board Shorts (view 1)
    View Product: Assorted Brands Board Shorts

    Assorted Brands

    Board Shorts
    Size 6
    $13.99 $11.19 20% off with code HOTDEAL
    45% off estimated retail
    PELAGIC Board Shorts (view 2)PELAGIC Board Shorts (view 1)New With Tags
    View Product: PELAGIC Board Shorts

    PELAGIC

    Board Shorts
    Size 8
    $19.99 $11.99 40% off with code HOTDEAL
    59% off estimated retail
    Adidas Board Shorts (view 2)Adidas Board Shorts (view 1)
    View Product: Adidas Board Shorts

    Adidas

    Board Shorts
    Size 3 mo
    $11.99 $9.59 20% off with code HOTDEAL
    44% off estimated retail
    Nike Board Shorts (view 2)Nike Board Shorts (view 1)
    View Product: Nike Board Shorts

    Nike

    Board Shorts
    Size Medium kids
    $13.99 $9.79 30% off with code HOTDEAL
    55% off estimated retail
    Unbranded Board Shorts (view 2)Unbranded Board Shorts (view 1)
    View Product: Unbranded Board Shorts

    Unbranded

    Board Shorts
    Size 7
    $11.99 $8.39 30% off with code HOTDEAL
    50% off estimated retail
    Speedo Board Shorts (view 2)Speedo Board Shorts (view 1)Price Drop
    View Product: Speedo Board Shorts

    Speedo

    Board Shorts
    Size Large youth
    $10.99 $7.69 30% off with code HOTDEAL
    31% off estimated retail
    Unbranded Board Shorts (view 2)Unbranded Board Shorts (view 1)
    View Product: Unbranded Board Shorts

    Unbranded

    Board Shorts
    Size 18 mo
    $10.99 $7.69 30% off with code HOTDEAL
    33% off estimated retail
    B. Split Board Shorts (view 2)B. Split Board Shorts (view 1)
    View Product: B. Split Board Shorts

    B. Split

    Board Shorts
    Size 6
    $10.99 $6.59 40% off with code HOTDEAL
    37% off estimated retail
    Athletic Works Rash Guard (view 2)Athletic Works Rash Guard (view 1)Price Drop
    View Product: Athletic Works Rash Guard

    Athletic Works

    Rash Guard
    Size Large infants
    $11.99 $7.79 35% off with code HOTDEAL
    $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
    $12.99 $8.44 35% off with code HOTDEAL
    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 18 mo
    $11.99 $7.19 40% off with code HOTDEAL
    66% 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 $5.84 35% off with code HOTDEAL
    46% off estimated retail
    iXtreme Outfitters Rash Guard (view 2)iXtreme Outfitters Rash Guard (view 1)Price Drop
    View Product: iXtreme Outfitters Rash Guard

    iXtreme Outfitters

    Rash Guard
    Size 18 mo
    $10.99 $7.14 35% off with code HOTDEAL
    33% off estimated retail
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