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      • Boys' Clothing (Sizes 4 & Up)
        • Selected categorySwimwear
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128 results

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    • BreathableRemove filter
    • Size: 20Remove filter
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    • Fortnite Big Boy's Chibi Head Swim Trunks - NWT
      Fortnite Big Boy's Chibi Head Swim Trunks - NWT
      Opens in a new window or tab
      Brand New
      $14.99
      Buy It Now
      +$5.00 delivery
      2+ watchers
      Sponsored
    • Janie And Jack Boys Sz 12  Printed Swim Trunks LOT of 2
      Janie And Jack Boys Sz 12 Printed Swim Trunks LOT of 2
      Opens in a new window or tab
      Pre-Owned
      $35.00
      or Best Offer
      +$6.99 delivery
      Sponsored
    • Kids Boys Swimsuit Fish Print Wetsuit Surfing Swimwear Summer Rash Guard Set
      Kids Boys Swimsuit Fish Print Wetsuit Surfing Swimwear Summer Rash Guard Set
      Opens in a new window or tab
      New (Other)
      $22.28 to $23.91
      Buy It Now
      Free delivery
      from China
      Sponsored
    • Boy Shirts With Boardshorts Hawaiian Sunsuit Vocationn Swimsuit Digital Printed
      Boy Shirts With Boardshorts Hawaiian Sunsuit Vocationn Swimsuit Digital Printed
      Opens in a new window or tab
      New (Other)
      $11.65 to $31.86
      Was: $32.696% off
      Buy It Now
      +$100.00 delivery
      from China
      Sponsored
    • PATAGOINA Wavefarer Board Shorts Swim Trunks Blue Boys 12 Gray Camouflage Cargo
      PATAGOINA Wavefarer Board Shorts Swim Trunks Blue Boys 12 Gray Camouflage Cargo
      Opens in a new window or tab
      Pre-Owned
      $10.00
      Was: $19.9950% off
      or Best Offer
      +$7.99 delivery in 2-4 days
      Free returns
      Sponsored
      Top Rated Plus
    • Quiksilver Boys Amphibian Swim Shorts 19” Size 26"/12 Blue
      Quiksilver Boys Amphibian Swim Shorts 19” Size 26"/12 Blue
      Opens in a new window or tab
      Pre-Owned
      $9.99
      Buy It Now
      +$5.99 delivery in 2-4 days
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    • Hurley Swim Trunks For Boys Size 12
      Hurley Swim Trunks For Boys Size 12
      Opens in a new window or tab
      Brand New
      $14.00
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      +$4.84 delivery
      Sponsored
    • Hurley Kids' Boys' Youth Heathered One and Only Boardshorts in Bright Crimson
      Hurley Kids' Boys' Youth Heathered One and Only Boardshorts in Bright Crimson
      Opens in a new window or tab
      Brand New
      $24.98
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      Free delivery in 2-4 days
      Buy 1, get 1 20% off with coupon
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    • Art Class Multi-Color Striped Swim Trunk Shorts Boy's Size 12 Husky
      Art Class Multi-Color Striped Swim Trunk Shorts Boy's Size 12 Husky
      Opens in a new window or tab
      Brand New
      $4.20
      Was: $7.0040% off
      or Best Offer
      +$4.65 delivery
      6 watchers
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    • Hurley Kids' Boys' Youth Striped Logo Boardshorts - Navy/Lime
      Hurley Kids' Boys' Youth Striped Logo Boardshorts - Navy/Lime
      Opens in a new window or tab
      Brand New
      $19.99
      List price: $50.0060% off
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      Free delivery in 2-4 days
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    • Patagonia Kid's Costa Rica Baggies Shorts 3" Unlined Unisex Kids Size L (12)
      Patagonia Kid's Costa Rica Baggies Shorts 3" Unlined Unisex Kids Size L (12)
      Opens in a new window or tab
      Brand New
      $29.97
      or Best Offer
      +$5.75 delivery
      Sponsored
    • Hurley Kids' Boys' Youth Color Block Logo Boardshorts - Black/Aqua/Fluorescent
      Hurley Kids' Boys' Youth Color Block Logo Boardshorts - Black/Aqua/Fluorescent
      Opens in a new window or tab
      Brand New
      $19.99
      List price: $50.0060% off
      Buy It Now
      Free delivery in 2-4 days
      Buy 1, get 1 20% off with coupon
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    • Hurley Kids' Boys' Youth Phantom Block Party Outcast 17" Boardshorts
      Hurley Kids' Boys' Youth Phantom Block Party Outcast 17" Boardshorts
      Opens in a new window or tab
      Brand New
      $30.00
      List price: $55.0045% off
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    • Kids Boys Wetsuit Swim Top Swimsuit Round Neck Swimwear Athletic Beachwear Set
      Kids Boys Wetsuit Swim Top Swimsuit Round Neck Swimwear Athletic Beachwear Set
      Opens in a new window or tab
      New (Other)
      $9.70 to $21.43
      Was: $22.185% off
      Buy It Now
      +$100.00 delivery
      from China
      Sponsored
    • Boys Swimsuits Beach Swimwear Mock Neck Bathing Suits Water Costume Quickly-dry
      Boys Swimsuits Beach Swimwear Mock Neck Bathing Suits Water Costume Quickly-dry
      Opens in a new window or tab
      New (Other)
      $9.95 to $16.88
      Was: $18.358% off
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      +$100.00 delivery
      from China
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    • Maui and Sons Boys XL Swim Trunks Bathing Suit Hawaiian 11” Board Shorts 18/20
      Maui and Sons Boys XL Swim Trunks Bathing Suit Hawaiian 11” Board Shorts 18/20
      Opens in a new window or tab
      Pre-Owned
      $9.99
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      +$6.55 delivery
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      Top Rated Plus
    • NWT Laguna Youth Boy's Reflections Swim Trunk  Sz  10/12
      NWT Laguna Youth Boy's Reflections Swim Trunk Sz 10/12
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      Brand New
      $19.99
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    • CABANA LIFE Big Boy's 12 Charleston Stripe Swim Trunks NWT
      CABANA LIFE Big Boy's 12 Charleston Stripe Swim Trunks NWT
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      $22.99
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    • Hurley Neptune Board Swim Shorts Boys Size 20/30" Blue Yellow Tie Dye Surf
      Hurley Neptune Board Swim Shorts Boys Size 20/30" Blue Yellow Tie Dye Surf
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      $12.95
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    • Art Class Swim Shorts Boys 12 Husky Teal Adjustable Waist Webbed Pockets NWT
      Art Class Swim Shorts Boys 12 Husky Teal Adjustable Waist Webbed Pockets NWT
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      $8.89
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        • PATAGOINA Wavefarer Board Shorts Swim Trunks Blue Boys 12 Gray Camouflage Cargo
          Patagonia
          PATAGOINA Wavefarer Board Shorts Swim Trunks Blue Boys 12 Gray Camouflage Cargo
          Opens in a new window or tab
          Pre-Owned
          $10.00
          +$7.99 delivery
        • Hurley Board Shorts Boys 30x9" Bathing Suit Neon Digi Camouflage Swimming Trunks
          Hurley
          Hurley Board Shorts Boys 30x9" Bathing Suit Neon Digi Camouflage Swimming Trunks
          Opens in a new window or tab
          Pre-Owned
          $14.99
          +$4.99 delivery
        • Quiksilver Boys Amphibian Swim Shorts 19” Size 26"/12 Blue
          Quiksilver
          Quiksilver Boys Amphibian Swim Shorts 19” Size 26"/12 Blue
          Opens in a new window or tab
          Pre-Owned
          $9.99
          +$5.99 delivery
        • Patagonia Shorts kids  Boys 12 Blue Swim Board Shorts  Trunk Pool Recycle
          Patagonia
          Patagonia Shorts kids Boys 12 Blue Swim Board Shorts Trunk Pool Recycle
          Opens in a new window or tab
          Pre-Owned
          $19.99
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        • HURLEY NEW w Tags Swim Trunks Boys Size 20  Color  Blue
          Hurley
          HURLEY NEW w Tags Swim Trunks Boys Size 20 Color Blue
          Opens in a new window or tab
          Brand New
          $19.99
          +$8.52 delivery
        • Art Class Swim Shorts Boys 12 Husky Teal Adjustable Waist Webbed Pockets NWT
          Art
          Art Class Swim Shorts Boys 12 Husky Teal Adjustable Waist Webbed Pockets NWT
          Opens in a new window or tab
          Brand New
          $8.89
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        • Speedo Boys Jammer Swimsuit Size 12 Navy New FREE SHIP
          Speedo
          Speedo Boys Jammer Swimsuit Size 12 Navy New FREE SHIP
          Opens in a new window or tab
          Brand New
          $23.00
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        • Quicksilver Swim Trunks Boys 14 Colorful Board Shorts Swimsuit :::: L
          Quiksilver
          Quicksilver Swim Trunks Boys 14 Colorful Board Shorts Swimsuit :::: L
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          Pre-Owned
          $17.10
          Free delivery
        • Speedo Boy's Training Swim Jammer - 2025
          Speedo
          Speedo Boy's Training Swim Jammer - 2025
          Opens in a new window or tab
          Brand New
          $29.50
          +$14.25 delivery
    • Volcom Tropical Hideout Boys Mod-Tech Trunks Size 20 Retail $40.00 New With Tags
      Volcom Tropical Hideout Boys Mod-Tech Trunks Size 20 Retail $40.00 New With Tags
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      Brand New
      $19.99
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      +$6.55 delivery
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    • Oshkosh Swim Trunks Boys 12 Sharks Aloha Ferns Board Shorts Waterpark Fun Summer
      Oshkosh Swim Trunks Boys 12 Sharks Aloha Ferns Board Shorts Waterpark Fun Summer
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      Pre-Owned
      $12.00
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      +$4.62 delivery
      Free returns
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    • Gap boys new with tags size 12/xl color block swim trunks
      Gap boys new with tags size 12/xl color block swim trunks
      Opens in a new window or tab
      Brand New
      $15.00
      0 bids · Time left3d 2h
      $19.50
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    • Johnnie O Swim Trunks Boys Youth 12 Blue Striped Mesh Lined Pockets
      Johnnie O Swim Trunks Boys Youth 12 Blue Striped Mesh Lined Pockets
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      Pre-Owned
      $18.95
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    • CABANA LIFE Big Boy's 8, 12 Long Sleeve Colorblock Blue Rashguard Shirt NWT
      CABANA LIFE Big Boy's 8, 12 Long Sleeve Colorblock Blue Rashguard Shirt NWT
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      $22.99
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    • Johnnie O Swim Trunks Boys Youth 12 Striped Mesh Lined Pockets
      Johnnie O Swim Trunks Boys Youth 12 Striped Mesh Lined Pockets
      Opens in a new window or tab
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      $12.95
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    • Hurley Kids' Youth Logo Boardshorts w/ Drawcord & Flap back pocket! NWT!
      Hurley Kids' Youth Logo Boardshorts w/ Drawcord & Flap back pocket! NWT!
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      $19.47 to $19.90
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    • Patagonia Shorts kids  Boys 12 Blue Swim Board Shorts  Trunk Pool Recycle
      Patagonia Shorts kids Boys 12 Blue Swim Board Shorts Trunk Pool Recycle
      Opens in a new window or tab
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      $19.99
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    • Kids Boy's Swimsuit Diving Tops With Shorts Set Athletic Tracksuits Bathing
      Kids Boy's Swimsuit Diving Tops With Shorts Set Athletic Tracksuits Bathing
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      New (Other)
      $9.70 to $24.05
      Was: $24.465% off
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    • NIKE Boy's Blue Printed Drawstring Breathable Swim Trunks #NESS7008 20 NWT
      NIKE Boy's Blue Printed Drawstring Breathable Swim Trunks #NESS7008 20 NWT
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      Brand New
      $27.55
      List price: $46.0040% off
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    • Kids Boys Swimsuit Quick Dry Swimwear Wetsuit Swim Top Shorts Summer Beach
      Kids Boys Swimsuit Quick Dry Swimwear Wetsuit Swim Top Shorts Summer Beach
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      $11.15 to $24.08
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    • Hurley Board Shorts Boys 30x9" Bathing Suit Neon Digi Camouflage Swimming Trunks
      Hurley Board Shorts Boys 30x9" Bathing Suit Neon Digi Camouflage Swimming Trunks
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    • HURLEY NEW w Tags Swim Trunks Boys Size 20  Color  Blue
      HURLEY NEW w Tags Swim Trunks Boys Size 20 Color Blue
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    • Hurley Boys Blue Gaze Swim Trunk Size 20 New With Tag Retail $38.00
      Hurley Boys Blue Gaze Swim Trunk Size 20 New With Tag Retail $38.00
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    • NWT Under Armour Boys M 10 / 12 Swim Trunks Board Shorts UPF 50+
      NWT Under Armour Boys M 10 / 12 Swim Trunks Board Shorts UPF 50+
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    • Volcom Swim Trunks For Boys Size 12
      Volcom Swim Trunks For Boys Size 12
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      $15.20
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    • Hurley Youth Boy's UPF 50+ Dri Fit Long & Short Sleeve Tops Gray/Black 10/12
      Hurley Youth Boy's UPF 50+ Dri Fit Long & Short Sleeve Tops Gray/Black 10/12
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    • Kids Boys Swim trunks Size 12  Sunflower Navy Blue
      Kids Boys Swim trunks Size 12 Sunflower Navy Blue
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    • Boys Bathing Suits Beach Swimsuits Pool Swimwear Kids Costume Surfing Shorts
      Boys Bathing Suits Beach Swimsuits Pool Swimwear Kids Costume Surfing Shorts
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    • Kids Boy's Swimsuit Fitness Tops With Swim Bottoms Swimming Bathing Suit Jogger
      Kids Boy's Swimsuit Fitness Tops With Swim Bottoms Swimming Bathing Suit Jogger
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    • Volcom Saturate Mod Boys Board Shorts Size 20 New With Tag Retail $45.00
      Volcom Saturate Mod Boys Board Shorts Size 20 New With Tag Retail $45.00
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    • O'Neill Boys Hyperfreak Swimwear Boardshorts Size 26 Stretch Multicolor Fade NWT
      O'Neill Boys Hyperfreak Swimwear Boardshorts Size 26 Stretch Multicolor Fade NWT
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    • Polo Ralph Lauren Shorts Boys 20 Youth Red Blue Pony Swim Trunks Board Shorts
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    • Art Class Boy's Striped Board Shorts Swim Trunks UPF 50+ NWT Size: (12 Husky)
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