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      • Boys' Clothing (Sizes 4 & Up)
        • Selected categorySwimwear
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        SMLXL455-667-889-101010-12Filter Applied12Filter Applied1416
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178 results

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    • 10-12Remove filter
    • Size: 12Remove filter
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    • Kids Boy Bathing Suit Mock Neck Swimsuit Swimming Swimwear Surfing Costume
      Kids Boy Bathing Suit Mock Neck Swimsuit Swimming Swimwear Surfing Costume
      Opens in a new window or tab
      New (Other)
      $15.99 to $28.39
      Buy It Now
      +$3.99 delivery
      from China
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    • Kids Boy Swimwear One Piece Swimsuit UPF 50+ Rash Guard Long Sleeve Wetsuit
      Kids Boy Swimwear One Piece Swimsuit UPF 50+ Rash Guard Long Sleeve Wetsuit
      Opens in a new window or tab
      New (Other)
      $11.89 to $31.79
      Buy It Now
      +$3.99 delivery
      from China
      Sponsored
    • Patagonia Boys Size 12 Nylon Swim Trunk Blue Striped Board Shorts 26x9
      Patagonia Boys Size 12 Nylon Swim Trunk Blue Striped Board Shorts 26x9
      Opens in a new window or tab
      Pre-Owned
      $11.20
      Was: $27.9960% off
      or Best Offer
      +$8.55 delivery in 2-4 days
      Free returns
      Sponsored
      Top Rated Plus
    • One-Piece Children Swimsuits Kid Swimwear Boys Long Sleeve Sun Protection New
      One-Piece Children Swimsuits Kid Swimwear Boys Long Sleeve Sun Protection New
      Opens in a new window or tab
      New (Other)
      $36.67
      Buy It Now
      Free delivery
      from China
      Sponsored
    • Patagonia Boys Size 12 Wavefarer Board Shorts Summer Orange Blue Unlined
      Patagonia Boys Size 12 Wavefarer Board Shorts Summer Orange Blue Unlined
      Opens in a new window or tab
      Pre-Owned
      $7.00
      or Best Offer
      +$4.71 delivery
      Free returns
      Sponsored
    • Hurley Boy's 4 Way Stretch Quick Dry Back Pocket Swim Shorts
      Hurley Boy's 4 Way Stretch Quick Dry Back Pocket Swim Shorts
      Opens in a new window or tab
      Brand New
      $14.98
      List price: $38.0061% off
      Buy It Now
      Free delivery in 2-4 days
      Free returns
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    • Speedo Youth Size 12 Black Swim Jammers - NWT!
      Speedo Youth Size 12 Black Swim Jammers - NWT!
      Opens in a new window or tab
      Brand New
      5.0 out of 5 stars.
      (1)1 product rating - Speedo Youth Size 12 Black Swim Jammers - NWT!
      $4.99
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      +$9.95 delivery
      Sponsored
    • NWT Speedo Boys Solid Powerflex Youth Brief Red Size 26 10/12
      NWT Speedo Boys Solid Powerflex Youth Brief Red Size 26 10/12
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    • Speedo Youth Size 12 Black Swim Jammers - NWT!
      Speedo Youth Size 12 Black Swim Jammers - NWT!
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      Brand New
      5.0 out of 5 stars.
      (1)1 product rating - Speedo Youth Size 12 Black Swim Jammers - NWT!
      $14.95
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    • Polo Ralph Lauren Boys Boardshorts Plaid Swim Trunks Pockets Logo Size M (10-12)
      Polo Ralph Lauren Boys Boardshorts Plaid Swim Trunks Pockets Logo Size M (10-12)
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      Pre-Owned
      $24.00
      or Best Offer
      +$6.55 delivery
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    • Polo Ralph Lauren Madras Plaid Swim Suit Boys Size M 10-12 Bathing Trunks
      Polo Ralph Lauren Madras Plaid Swim Suit Boys Size M 10-12 Bathing Trunks
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      Pre-Owned
      $10.00
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      +$5.99 delivery
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    • Speedo Youth Size 12 Black Swim Jammers - NWT!
      Speedo Youth Size 12 Black Swim Jammers - NWT!
      Opens in a new window or tab
      Brand New
      5.0 out of 5 stars.
      (1)1 product rating - Speedo Youth Size 12 Black Swim Jammers - NWT!
      $15.00
      or Best Offer
      +$6.00 delivery
      Extra 10% off with coupon
      Sponsored
    • Patagonia Boys Wavefarer Striped Multicolor Board Shorts Size 12 #357
      Patagonia Boys Wavefarer Striped Multicolor Board Shorts Size 12 #357
      Opens in a new window or tab
      Pre-Owned
      $13.00
      or Best Offer
      +$4.84 delivery
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    • Lands End Boys Size 10-12 Navy Blue/ White Striped  Yellow waistband Swim Trunks
      Lands End Boys Size 10-12 Navy Blue/ White Striped Yellow waistband Swim Trunks
      Opens in a new window or tab
      Pre-Owned
      $15.00
      or Best Offer
      +$4.84 delivery
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    • Kids Boy Swimwear Mock Neck Swimsuit Comfortable Bathing Suit Quickly-dry Beach
      Kids Boy Swimwear Mock Neck Swimsuit Comfortable Bathing Suit Quickly-dry Beach
      Opens in a new window or tab
      New (Other)
      $15.39 to $26.79
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      +$3.99 delivery
      from China
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    • Kids Boy Swimwear Full Body Rash Guard Activities Swimsuit One Piece Wetsuit
      Kids Boy Swimwear Full Body Rash Guard Activities Swimsuit One Piece Wetsuit
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      New (Other)
      $14.79 to $34.89
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      +$3.99 delivery
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    • HANNA ANDERSSON Boys 150 Large 12 10 Swim Shirt Youth Rash Guard Disney Mickey L
      HANNA ANDERSSON Boys 150 Large 12 10 Swim Shirt Youth Rash Guard Disney Mickey L
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    • Patagonia $49 Kids Baggies Nylon Shorts 7" Lined Buckhorn Green  Size L (12)
      Patagonia $49 Kids Baggies Nylon Shorts 7" Lined Buckhorn Green Size L (12)
      Opens in a new window or tab
      Brand New
      $44.00
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    • Kids Boys Swimwear Summer Rash Guard Outfits Swimsuit Diving Beachwear Party
      Kids Boys Swimwear Summer Rash Guard Outfits Swimsuit Diving Beachwear Party
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      $14.29 to $26.19
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    • PATAGONIA • Boys Navy Red Nylon Swim Trunks Board Shorts Size 12
      PATAGONIA • Boys Navy Red Nylon Swim Trunks Board Shorts Size 12
      Opens in a new window or tab
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      $23.00
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      +$5.80 delivery
      Sponsored
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        • Patagonia Boys Size 12 Nylon Swim Trunk Blue Striped Board Shorts 26x9
          Patagonia
          Patagonia Boys Size 12 Nylon Swim Trunk Blue Striped Board Shorts 26x9
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          Pre-Owned
          $11.20
          +$8.55 delivery
        • Patagonia $49 Kids Baggies Nylon Shorts 7" Lined Buckhorn Green  Size L (12)
          Patagonia
          Patagonia $49 Kids Baggies Nylon Shorts 7" Lined Buckhorn Green Size L (12)
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        • Speedo Shorts Boys 12 Black Jammer Nylona Spandex Blend Drawstring Swim
          Speedo
          Speedo Shorts Boys 12 Black Jammer Nylona Spandex Blend Drawstring Swim
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          $13.19
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        • Hurley X20-dri beige board shorts boys sz 12
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          Hurley X20-dri beige board shorts boys sz 12
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          $9.00
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        • Speedo Boy’s Black Jammer Swim Bottoms Size 12
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        • Hurley Boy's 4 Way Stretch Quick Dry Back Pocket Swim Shorts
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          Hurley Boy's 4 Way Stretch Quick Dry Back Pocket Swim Shorts
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        • NEW - Bundle MARVEL SPIDERMAN & GOODFELLOW BOYS SWIM TRUNKS XS/10-12.   Loc-8
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        • NWT Quicksilver Boys Amphibian Tee/Rashguard w/Ultra-Violet Protection 50+ Sz 12
          Quiksilver
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    • Boys 3 Piece Rash Guard Swimsuit Swimwear Sets Shirt Trunks Shorts with Swim Hat
      Boys 3 Piece Rash Guard Swimsuit Swimwear Sets Shirt Trunks Shorts with Swim Hat
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    • MOLO Neptune Rash Guard Coral Reef Ocean Long Sleeve Graphic Swim Top Kids 11-12
      MOLO Neptune Rash Guard Coral Reef Ocean Long Sleeve Graphic Swim Top Kids 11-12
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    • Lands End Boys Medium (10-12) Rash Guard Swim Shirt Kelly Green
      Lands End Boys Medium (10-12) Rash Guard Swim Shirt Kelly Green
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    • Hanna Anderson Unisex Aqua Blue Short Sleeve Rash Guard Top Size 150 (Size 12)
      Hanna Anderson Unisex Aqua Blue Short Sleeve Rash Guard Top Size 150 (Size 12)
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    • Patagonia $49 Kids Baggies Nylon Shorts 7" Lined Vessel Blue  Size L(12)
      Patagonia $49 Kids Baggies Nylon Shorts 7" Lined Vessel Blue Size L(12)
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    • NWT $30 SZ 10 Speedo Boy's Swimsuit Jammer Begin to Swim Solid black
      NWT $30 SZ 10 Speedo Boy's Swimsuit Jammer Begin to Swim Solid black
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    • Old Navy Gender-Neutral Hybrid Swim Shorts L(10-12) For Kids Black
      Old Navy Gender-Neutral Hybrid Swim Shorts L(10-12) For Kids Black
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    • TOMMY HILFIGER Boys Board Swim Shorts Graffiti Print Spellout All Over Sz 12/14
      TOMMY HILFIGER Boys Board Swim Shorts Graffiti Print Spellout All Over Sz 12/14
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      $9.79
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    • Vtg Athletech Boy Sz 10-12 Swim Trunk Shorts Red Nylon Black/Yellow Stripe Logo
      Vtg Athletech Boy Sz 10-12 Swim Trunk Shorts Red Nylon Black/Yellow Stripe Logo
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    • Kids Boy's Tracksuits Swim Tops With Shorts Set Short Sleeve Swimsuit Beach
      Kids Boy's Tracksuits Swim Tops With Shorts Set Short Sleeve Swimsuit Beach
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    • Kids Boy Swimwear 2 Piece Top Shorts Surfing Swimsuit Silky Pants Running Pool
      Kids Boy Swimwear 2 Piece Top Shorts Surfing Swimsuit Silky Pants Running Pool
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    • Kids Boy Swimwear Boyleg Bathing Suit Patchwork Swimsuit Beach Jumpsuit Nylon
      Kids Boy Swimwear Boyleg Bathing Suit Patchwork Swimsuit Beach Jumpsuit Nylon
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    • Patagonia Board Shorts Boys 12 Blue Gray Drawstring Zip Pocket Nylon
      Patagonia Board Shorts Boys 12 Blue Gray Drawstring Zip Pocket Nylon
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    • LANDS' END Boys Blue Swim Shirt Size M (10-12) Mockneck UPF 50 Rash Guard Surf
      LANDS' END Boys Blue Swim Shirt Size M (10-12) Mockneck UPF 50 Rash Guard Surf
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    • $70 Molo Kid's Boy's Blue Shark Printed Swim Shorts Size 9-12y 146-152 cm
      $70 Molo Kid's Boy's Blue Shark Printed Swim Shorts Size 9-12y 146-152 cm
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    • NEW! YOUTH BOY'S HURLEY 4 WAY STRETCH PULL ON SWIM SHORT! DRAWSTRING! VARIETY
      NEW! YOUTH BOY'S HURLEY 4 WAY STRETCH PULL ON SWIM SHORT! DRAWSTRING! VARIETY
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    • Patagonia Shorts kids  Boys 12 Blue Swim Board Shorts  Trunk Pool Recycle
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    • HO SPORTS 4 Way Stretch Back Zipper Black Rash Guard Wet Suit Junior's Size 12
      HO SPORTS 4 Way Stretch Back Zipper Black Rash Guard Wet Suit Junior's Size 12
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    • Boys Polo Ralph Lauren Madras Plaid Colorful Swim Trunks Size 10- 12 Medium
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    • Patagonia $49 Kids Youth Baggies Nylon Shorts 7" Lined Coho  Coral Size L(12)
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    • NWT Speedo Boy Sz 12 Swim Bottom Jammers Crocodile Print SPF 50+ Azure Blue New
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