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- Patagonia Baggies Hexy Fish Sprouted Green Boys Swim Shorts Trunks Bathing SuitOpens in a new window or tabPre-Owned$26.37or Best Offer+$6.55 delivery
- Patagonia Baggies Boys Bandicoot Lined Swim Shorts Trunks Bathing Suit XXLOpens in a new window or tabPre-Owned$26.37or Best Offer+$6.55 delivery
- Polo By Ralph Lauren Kids Boys Adjustable Elastic Waist Lined Swim Trunks Sz 4Opens in a new window or tabPre-Owned$27.99or Best OfferFree deliveryFree returns
- Mickey Mouse Boy's 2 Piece UPF+ 50 Long Sleeve Rash Guard and Swim Trunk SetOpens in a new window or tabBrand New$14.00Buy It NowFree deliverySave up to 20% when you buy more
- Hurley Youth Boy's UPF 50+ Long Sleeve Rash Guard Swim TopOpens in a new window or tabBrand New$12.99List price: $26.0050% offBuy It NowFree delivery in 2-4 daysFree returnsSave up to 30% when you buy more
- Member's Mark Boy's 4-Way Stretch Quick Dry Resort Swim TrunkOpens in a new window or tabBrand New$10.99List price: $30.0063% offBuy It NowFree delivery in 2-4 daysFree returnsSave up to 30% when you buy more
- Hurley Boy's Long Sleeve Dri-Fit UPF 50+ Swim ShirtOpens in a new window or tabBrand New$16.98List price: $26.0035% offBuy It NowFree delivery in 2-4 daysFree returnsSave up to 30% when you buy more
- Boy’s kids teen Speedo blue nautical print board shorts swim trunks elastic XXLOpens in a new window or tabPre-Owned$15.00or Best Offer+$4.33 delivery in 2-4 days
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Top selling items from trusted sellers | Sponsored- Polo By Ralph Lauren Kids Boys Adjustable Elastic Waist Lined Swim Trunks Sz 4Opens in a new window or tab$27.99babies_n_things (2,031) 100%
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- Nike Boys Swim Bottoms Briefs Youth Swimwear Swimsuit Solid T8SS6017Opens in a new window or tab$14.99goodbyeretail (119,616) 99.5%
- Star Wars Kids Swimming Shorts Size 4 Boys Swim Trunks Yoda Clone WarsOpens in a new window or tab$9.50lostandfoundantiques11 (12,413) 100%
- Hurley Boy's Long Sleeve Dri-Fit UPF 50+ Swim ShirtOpens in a new window or tab$16.98ewirelessgear (170,232) 99.7%Save up to 30% when you buy more
- Nike Boys Swimsuit Brief Swim Bottom Reversible Water Polo Drag Suit TESS0031Opens in a new window or tab$14.99goodbyeretail (119,616) 99.5%
- NWT UNDER ARMOUR BOYS SIZE 4 ~ TWO PIECE VOLLEY SWIM SET MSRP $40.00Opens in a new window or tab$29.99shebopandcowboy-5 (1,153) 100%
- TOMMY BAHAMA Little Boy's Size 4 Blue 2-pc Rashguard & Swim Trunks Set NWTOpens in a new window or tab$24.99m7162ac (1,724) 99.8%
- Nike Boys Swim Bottoms Briefs Youth Swimwear Swimsuit Solid T8SS6017Opens in a new window or tabBrand New$14.99 to $17.99Buy It NowFree deliveryFree returnsTop Rated Plus
- UNDER ARMOUR UPF 50+ 2PC Rash guard & Trunks OR Swim Trunks UPF50 Sz 4-7, YS-YXLOpens in a new window or tabBrand New$22.99 to $32.99Buy It NowFree delivery in 2-4 days10% off $50+ with coupon
- Hurley Boy's UPF50+ Drawstring Waist Pull On Swim ShortOpens in a new window or tabBrand New$14.99List price: $38.0061% offBuy It NowFree delivery in 2-4 daysFree returnsSave up to 30% when you buy more
- Disney Swim Trunks Toddler Size 4T Mickey Mouse American Flag Beach PoolOpens in a new window or tabPre-Owned$14.39Was: $15.9910% offor Best OfferFree delivery
- Mickey Mouse Boy's 2 Piece UPF+ 50 Long Sleeve Rash Guard and Swim Trunk SetOpens in a new window or tabBrand New$19.99List price: $30.0033% offBuy It NowFree delivery in 2-4 daysFree returnsSave up to 30% when you buy more
- Polo Ralph Lauren Swim Trunks Boys Size 4 Plaid Liner Board Shorts LinedOpens in a new window or tabPre-Owned$14.95or Best Offer+$6.95 delivery in 2-4 daysFree returnsTop Rated Plus
- Under Armour Boys Swim Trunks Shorts Size 4 - Multicolor Striped NWTOpens in a new window or tabBrand New$18.00or Best Offer+$4.84 delivery
- GAP Kids California Surf Long Sleeve Rash Guard Swim Shirt Blue XXL(14/16) EUCOpens in a new window or tabNew (Other)$24.00or Best Offer+$6.55 delivery in 2-4 days
- Hurley Boy's Rash Guard & Swim Trunks Set /or Trunks Dri-Fit UPF 50+ Sz 5-7 NWTOpens in a new window or tabBrand New$24.99 to $34.99Buy It NowFree delivery in 2-4 days10% off $50+ with coupon
- RSVLTS Nickelodeon Lined Swim Shorts Youth XXL Green SpongeBob Rugrats and MoreOpens in a new window or tabPre-Owned$29.98or Best Offer+$4.84 deliveryFree returnsTop Rated Plus
- Nike Boys Swimsuit Brief Swim Bottom Reversible Water Polo Drag Suit TESS0031Opens in a new window or tabBrand New$14.99Buy It NowFree deliveryFree returnsTop Rated Plus
- Hurley Swim Shorts, Little Boys Size 4, Logo, Striped, LinedOpens in a new window or tabPre-Owned$6.97Buy It Now+$4.51 delivery
From our popular brands
Based on number of views and purchases | Sponsored- PatagoniaPatagonia Baggies Hexy Fish Sprouted Green Boys Swim Shorts Trunks Bathing SuitOpens in a new window or tabPre-Owned$26.37+$6.55 delivery
- PatagoniaPatagonia Baggies Boys Bandicoot Lined Swim Shorts Trunks Bathing Suit XXLOpens in a new window or tabPre-Owned$26.37+$6.55 delivery
- DisneyDisney Swim Trunks Toddler Size 4T Mickey Mouse American Flag Beach PoolOpens in a new window or tabPre-Owned$14.39Free delivery
- HurleyHurley Board Shorts Boys Sz 4 Swimsuit Surf Trunks Shark Adjustable Waist BlackOpens in a new window or tabPre-Owned$8.99+$5.80 delivery
- HurleyHurley Boy's 4 Way Stretch UPF+50 Drawstring Waist Swim ShortOpens in a new window or tabBrand New$16.99Free deliverySave up to 30% when you buy more
- DisneyMickey Mouse Boy's 2 Piece UPF+ 50 Long Sleeve Rash Guard and Swim Trunk SetOpens in a new window or tabBrand New$19.99Free deliverySave up to 30% when you buy more
- QuiksilverQuiksilver Boys Size 4 Everyday Scallop Black Tribal Drawstring Boardshorts NEWOpens in a new window or tabBrand New$27.36+$5.35 delivery
- ArtArt Class Boys' Ombre Swim Trunks Size 4 Black Gray Snap Closure UPF 50+ NWTOpens in a new window or tabBrand New$10.76+$4.00 delivery
- NikeNike Boys Youth Black Swim Shorts Polyester Drawstring Elastic Waist Size 4 NWTOpens in a new window or tabBrand New$17.39+$6.95 delivery
- NikeNike Boys Swim Shorts and Lightweight Cotton Pants Blue Size 4TOpens in a new window or tabPre-Owned$16.00+$4.99 delivery
- SpeedoSpeedo PowerFlex Eco Swimming Trunks Blue/Black 26" Boys Size 8-10Opens in a new window or tabBrand New$19.54+$5.85 deliverySave up to 15% when you buy more
- SpeedoSPEEDO Revolve Splice PowerFlex Swim Jammer Male Shorts Black Blue Boys Sz 26 28Opens in a new window or tabBrand New$33.68+$4.50 delivery
- Hurley Boys 16/28 Green Black Camo Surf Board Shorts Beach Summer SwimOpens in a new window or tabBrand New$20.00Buy It NowFree deliveryLast one
- New with Tags Two Pairs Polo Ralph Lauren Boys' Swimming Trunks Size 4/4T PlaidOpens in a new window or tabBrand New$50.00Buy It Now+$10.40 delivery
- Polo Ralph Lauren Toddler Swim Trunks Navy With Red PonyOpens in a new window or tabPre-Owned$30.00or Best Offer+$5.99 delivery
- Vintage Scooby-Doo Boys Swim Trunks Size 4T Lined (No Elastic)Opens in a new window or tabPre-Owned$12.88or Best Offer+$6.88 deliveryFree returnsTop Rated Plus
- Lot of 5 Boys sz 4 (1 sz 5) Four shirts one swimtrunk Under Armour, Nike, DisneyOpens in a new window or tabPre-Owned$21.00or Best Offer+$11.81 delivery
- Hurley Youth Boy's UPF 50+ H2O Dri Fit Long Sleeve Rash Guard Swim Top (Black,Opens in a new window or tabBrand New$12.99List price: $26.0050% offBuy It NowFree delivery in 2-4 daysFree returns
- Nautica Swim Trunks Boys Hawaiian Board Shorts Yellow Blue Mesh Liner Size 4Opens in a new window or tabPre-Owned$7.49or Best Offer+$4.95 delivery
- Nike Boys Youth Black Swim Shorts Polyester Drawstring Elastic Waist Size 4 NWTOpens in a new window or tabBrand New$17.39Was: $28.9840% offBuy It Now+$6.95 delivery in 2-4 daysFree returnsTop Rated Plus
- Maamgic Boys Swim Trunks Swimsuit Youth Size 4T AnchorOpens in a new window or tabPre-Owned$13.99or Best Offer+$4.75 delivery
- Hurley Board Shorts Boys Sz 4 Swimsuit Surf Trunks Shark Adjustable Waist BlackOpens in a new window or tabPre-Owned$8.99or Best Offer+$5.80 delivery
- Ecostinger Boys Full Body Sun Protective Swimsuit Navy Lime Turtle Logo Size 4Opens in a new window or tabBrand New$28.00Buy It NowFree deliveryFree returnsTop Rated Plus
- Laguna Stars Swim Top Little Boys 4 Strong Blue Crew Neck Short Sleeve PulloverOpens in a new window or tabBrand New$24.66Was: $29.0115% offor Best Offer+$5.95 deliveryFree returnsTop Rated Plus
- Disney Shorts Boys Size 4T Multicolor Pixar Cars Swim TrunksOpens in a new window or tabPre-Owned$4.49or Best Offer+$5.70 deliveryFree returnsTop Rated Plus
- Penguin Munsingwear Rash Guard Boys 4 White Blue Swim Shirt UVUPF Long SleeveOpens in a new window or tabPre-Owned$9.95or Best Offer+$4.99 delivery in 2-4 daysFree returnsTop Rated Plus
- Speedo PowerFlex Eco Swimming Trunks Blue/Black 26" Boys Size 8-10Opens in a new window or tabBrand New$19.54Was: $22.9915% offBuy It Now+$5.85 deliverySave up to 15% when you buy more
- Old Navy Frog Print 4T,swim TrunkOpens in a new window or tabPre-Owned$5.49or Best Offer+$4.99 delivery
- Hurley Boy's 4 Way Stretch UPF+50 Drawstring Waist Swim ShortOpens in a new window or tabBrand New$16.99List price: $38.0055% offBuy It NowFree delivery in 2-4 daysFree returnsSave up to 30% when you buy more
- Nike Swimwear Boys Youth Size 26 Med Large Performance Swim Trunks Briefs $48Opens in a new window or tabBrand New$14.99or Best OfferFree delivery in 2-4 daysFree returnsTop Rated Plus
- Southern Lure Boys Youth Size 4 Colorful Tropical Parrot Print Swim Trunks NEWOpens in a new window or tabBrand New$27.36or Best Offer+$5.35 delivery
- NWT Ralph Lauren Boys Sz 4 Green Swim Shorts Trunks Sanibel Big Pony Pockets N45Opens in a new window or tabBrand New$27.60Was: $46.0040% offor Best Offer+$4.71 delivery
- OP Ocean Pacific Youth Swim Trunks Board Shorts Piranha Size Youth XXL 18 VtgOpens in a new window or tabPre-Owned$34.99or Best Offer+$6.40 deliveryFree returns
- Oshkosh Boy’s Eat Sleep Beach Rash Guard Swim Shirt size 4/5Opens in a new window or tabPre-Owned$4.00or Best Offer+$5.85 delivery
- Ecostinger Boys Sun Protective Swimsuit Navy Green Size 4T NWTOpens in a new window or tabBrand New$19.99Buy It NowFree deliveryFree returnsTop Rated Plus
- Nike Boys Shark Mod Swimsuit Brief Size 26 NESS7032-378 Rage Green CompetitionOpens in a new window or tabBrand New$17.99Was: $19.9910% offBuy It Now+$5.00 delivery
- Set Of 2! Maamgic Swim Trunks Swim Shorts Boys Toddler Size 4TOpens in a new window or tabPre-Owned$21.00or Best Offer+$4.99 delivery
- Old Navy Swim Shorts Boys Size 4T 2 Pair Of Old Navy Swimming Trunks For BoysOpens in a new window or tabPre-Owned$16.99or Best OfferFree delivery
- Star Wars Kids Swimming Shorts Size 4 Boys Swim Trunks Yoda Clone WarsOpens in a new window or tabPre-Owned$9.50Buy It NowFree deliveryFree returnsTop Rated Plus
- Hurley Youth Boy's UPF 50+ Long Sleeve Rash Guard Swim Top Sz 4 AM1Opens in a new window or tabBrand New$5.99Buy It Now+$5.99 delivery
- The North Face Flash Dry Pull On Multi-Color Swim Trunks Toddler Size 4Opens in a new window or tabNew (Other)$15.00Buy It NowFree delivery
- IFFEI Boy White With Green Tropical Leaf Swim Trunks - Size 4Opens in a new window or tabBrand New$12.99Buy It Now+$6.55 delivery
- NWT Janie and Jack Size 4 COASTAL GETAWAY Sailboat Swim Shorts PocketOpens in a new window or tabBrand New$16.00Buy It Now+$6.25 delivery
- LL Bean Sun Shirt Kids 4 Blue Yellow Long Sleeve Swim Surf Protection Rash GuardOpens in a new window or tabBrand New$8.08Was: $10.7725% offor Best Offer+$4.84 deliveryFree returnsTop Rated Plus
- Nike Boys Shark Mod Brief Swimsuit Size 28 NESS7032-673 Racer Pink CompetitionOpens in a new window or tabBrand New$21.59Was: $23.9910% offBuy It Now+$5.00 delivery
- SPEEDO Revolve Splice PowerFlex Swim Jammer Male Shorts Black Blue Boys Sz 26 28Opens in a new window or tabBrand New$33.68Was: $44.9025% offBuy It Now+$4.50 delivery in 2-4 days
- SWIM FIX Boy's Swim Trunks Size 4 UPF 50+ Blue Checkered B3-4Opens in a new window or tabBrand New$11.97or Best OfferFree delivery
- Boy Swim Trunks Bugs Bunny Looney Tunes Size 4 Size 5Opens in a new window or tabBrand New$4.99or Best Offer+$4.84 delivery
- Kids Tommy Bahama Size 4T Swim Trunk Short Red White Blue Plaid Yellow Fish LogoOpens in a new window or tabPre-Owned$17.99or Best Offer+$4.99 deliveryFree returnsTop Rated Plus
- Sand N Sun 2PC Swimwear Set Boys Size 4T Swim Shirt & Lined Board Shorts SharksOpens in a new window or tabPre-Owned$15.98or Best Offer+$7.57 delivery
- Polo Ralph Lauren boys swimming shorts age 3 years 4/4T summer Red traveler swOpens in a new window or tabBrand New$24.95Buy It NowFree delivery
- Art Class Boys' Ombre Swim Trunks Size 4 Black Gray Snap Closure UPF 50+ NWTOpens in a new window or tabBrand New$10.76or Best Offer+$4.00 delivery
- NWT! UNDER ARMOUR Little Boy SIZE 4 Swim Trunks Shorts Board ShortsOpens in a new window or tabBrand New$15.99Buy It Now+$4.90 delivery
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- EUC Maamgic Boys Swim Trunks Shorts 4 Palm Trees Green BlueOpens in a new window or tabPre-Owned$9.99or Best Offer+$4.14 delivery
- boy's Kanu Surf swim trunks size small (4) tie dye blue mesh lining drawstringOpens in a new window or tabBrand New$9.00or Best Offer+$5.11 deliveryFree returnsTop Rated Plus
- OP Ocean Pacific Boy's Teen Swim Shorts 2XL (Sz 16) Mesh Board Blue Long 12"Opens in a new window or tabPre-Owned$2.60Was: $12.9980% offor Best Offer+$5.00 deliveryFree returnsExtra 15% off with couponTop Rated Plus
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- NEW WITH TAGS UNDER ARMOUR SWIM TRUNKS RASH GUARDSET ORANGE BLUE SIZE 4 BOYSOpens in a new window or tabBrand New$25.99Buy It NowFree delivery
- OP Board Shorts Youth Boy's XXL 2XL (18) Sharks Swim Trunks Cargo Pocket EUCOpens in a new window or tabPre-Owned$8.37Was: $11.9530% offor Best Offer+$8.54 deliveryFree returnsTop Rated Plus
- Boy's 4T Hurley Swim Shorts Trunks Boardshorts Pastel Green White Striped NEWOpens in a new window or tabNew (Other)$10.00or Best Offer+$4.50 delivery
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- TOMMY BAHAMA Boy’s Size XS (4) Blue Swim Trunks PocketsOpens in a new window or tabPre-Owned$6.39Was: $7.9920% offor Best Offer+$6.00 deliveryFree returnsExtra 20% off with couponTop Rated Plus
- Janie And Jack Swim Rash Guard Shirt Boys Size 4 Navy Long Sleeve Beach VacayOpens in a new window or tabPre-Owned$14.99Buy It Now+$4.84 delivery
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