2,400+ results
- POLO RALPH LAUREN AUTHENTIC BOYS BRAND NEW ORIGINAL SWIM TRUNK SHORTS Sz 4, NWTOpens in a new window or tabBrand New$26.95or Best Offer+$6.95 delivery in 2-4 days
- BIRDWELL BEACH BRITCHES BOYS BOARDSHORTS YOUTH KIDS TODDLER SIZE 4Opens in a new window or tabPre-Owned$25.00Buy It NowFree delivery
- Boys Baseball Pink Blue Ice Cream Drip Sprinkles Swim Lined Shorts Sz 4YOpens in a new window or tabNew (Other)$15.99Buy It Now+$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
- 💕1 Vilebrequin Boy Swim Trunks YOUR CHOICE: Turtle Elephants Bear Travel 4 & 2Opens in a new window or tabPre-Owned$21.90Buy It Now+$7.90 delivery
- 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 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
- Little Boy's Youth Hurley 2 Piece UPF 50+ H2O Dri Swim Shirt Swim Trunks SetOpens in a new window or tabBrand New$24.99Buy It NowFree deliveryFree returnsTop Rated Plus
Picked For You
Top selling items from trusted sellers | Sponsored- BIRDWELL BEACH BRITCHES BOYS BOARDSHORTS YOUTH KIDS TODDLER SIZE 4Opens in a new window or tab$25.00afamilyaffair7 (5,258) 100%
- Polo By Ralph Lauren Kids Boys Adjustable Elastic Waist Lined Swim Trunks Sz 4Opens in a new window or tab$27.99babies_n_things (1,988) 99.8%
- Tommy Bahama Boys 3 Piece Swim Set (Shark, Size 4T) NWTOpens in a new window or tab$32.11gcsservices (22,742) 99.2%
- Hurley Boys Swim Short Size 4 Starfish OrangeOpens in a new window or tab$14.44bargainbuys_1967 (59,827) 99.8%
- New! Boy's Hurley Multi Shark Print Swim Trunks Multiple SizesOpens in a new window or tab$29.95rotehale (1,042) 98.8%
- Star Wars Baby Yoda Boy Swimsuit Swim Trunks 4Opens in a new window or tab$11.16titan27279 (6,397) 99.8%
- Disney Store Mickey Mouse Donald Pluto & Goofy Swim Trunks Kids Size 4 5/6Opens in a new window or tab$24.95thedisneyhouse (24,063) 99.1%4+ watchers
- SWIM FIX Boy's Swim Trunks Size 4 UPF 50+ Blue Checkered B3-4Opens in a new window or tab$11.97thepiratetreasures (8,703) 98.6%
- Bilo Baby Kid Boys Chic Animals Printed One-Piece Rash Guard Sun Hat SwimsuitOpens in a new window or tabBrand New$6.99Buy It NowFree deliverySave up to 50% when you buy more
- Boy Swim Trunks Lot 4TOpens in a new window or tabPre-Owned$9.990 bids · Time left6d 20h$15.00Buy It Now+$8.71 delivery
- Minecraft ☆ Boys' Allover Character Swim Trunks ☆Sizes 4/5, 6/7, 8, 10/12, 14/16Opens in a new window or tabBrand New$17.95Buy It NowFree deliveryFree returns
- NWOT Polo Ralph Lauren Toddler Swim Shorts/Trunks Light Blue Sz 4T O8Opens in a new window or tabNew (Other)$27.98or Best Offer+$6.40 delivery
- Kids swim wear lot size XS 4 / 5, 4T, 11/12 Sandals Hurley Cat & Jack Art ClassOpens in a new window or tabPre-Owned$14.00Buy It Now+$9.39 delivery
- Super Mario Boy's Swim Trunks 2013 Nintendo Size 4 Video Game Beach VacationOpens in a new window or tabPre-Owned$10.38Was: $12.9720% offor Best Offer+$6.35 deliveryFree returnsTop Rated Plus
- Sundek Boys Fluo Orange Swim Trunks Shorts Rainbow Size 4Opens in a new window or tabBrand New$61.00or Best OfferFree delivery
- Psycho Bunny Maybrook Bunny Print Little Boy 4 XXXSOpens in a new window or tabPre-Owned$17.99or Best Offer+$6.50 deliveryFree returnsTop Rated Plus
- Boy's Nike 3 Brand Polyester Swim Shorts Swimsuit NEWOpens in a new window or tabBrand New$21.99Buy It NowFree deliveryFree returnsTop Rated Plus
- POLO RALPH LAUREN AUTHENTIC BOYS BRAND NEW ORIGINAL SWIM TRUNK SHORTS Sz 4, NWTOpens in a new window or tabBrand New$26.95or Best Offer+$6.95 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
- Mini Boden Colorful Sailboat Boat Nautical Swim Trunks Board Shorts Boy 3-4YOpens in a new window or tabPre-Owned$14.95or Best Offer+$6.99 delivery
From our popular brands
Based on number of views and purchases | Sponsored- NikeBoy's Nike 3 Brand Polyester Swim Shorts Swimsuit NEWOpens in a new window or tabBrand New$21.99Free delivery
- VilebrequinVilebrequin Boys' Jirise Blue Shark Print Swim Trunks L131119 Size 4 ANSOpens in a new window or tabBrand New$116.00+$5.20 deliveryExtra 15% off with coupon
- HurleyLittle Boy's Youth Hurley 2 Piece UPF 50+ H2O Dri Swim Shirt Swim Trunks SetOpens in a new window or tabBrand New$24.99Free delivery
- VilebrequinVilebrequin Boys Tropical Print Swim Shorts Trunks ~ 4/5Opens in a new window or tabPre-Owned$38.00+$4.84 delivery
- MarvelBOYS MARVEL HULK AVENGERS DISNEY STORE UPF 50 RASH GUARD SIZE 4T-7 NWTOpens in a new window or tabBrand New$17.99Free deliverySave up to 25% when you buy more
- HurleyHURLEY H2O DRI UPF 50+ SWIM SET Little Boy Size 4 SWIM TRUNKS/RASH GUARD FLORALOpens in a new window or tabBrand New$19.99+$5.99 delivery
- DisneyDisney Cars Team Blue Swim Suit Trunks Shorts Boys Size 4 / 5Opens in a new window or tabPre-Owned$7.50+$4.71 delivery
- TrunksMini Boden Colorful Sailboat Boat Nautical Swim Trunks Board Shorts Boy 3-4YOpens in a new window or tabPre-Owned$14.95+$6.99 delivery
- DisneyDisney Store Mickey Mouse Donald Pluto & Goofy Swim Trunks Kids Size 4 5/6Opens in a new window or tabBrand New$24.95Free delivery
- GapBaby Gap Boys 4 4T Swim Trunks Blue Ocean Scene Sailboat Birds Summer BeachOpens in a new window or tabPre-Owned$21.99+$4.52 delivery
- TrunksSWIM FIX Boy's Swim Trunks Size 4 UPF 50+ Blue Checkered B3-4Opens in a new window or tabBrand New$11.97Free delivery
- Hurley Long Sleeve Dri-Fit UPF 50+ Shirt Black, Boy's Swim Top, SELECT SIZEOpens in a new window or tabBrand New$14.88Was: $16.007% offBuy It NowFree deliverySave up to 25% when you buy more
- Sun Smart Boy's Surf's Up Rash Guard Swim Tee UPF 50+ Protective Long Sleeve LOpens in a new window or tabBrand New$10.00or Best Offer+$6.35 delivery
- Sun Smart Boy's Rash Guard Swim Tee UPF 50+ Surf Car Graphic Green Blue Size 2-4Opens in a new window or tabBrand New$10.00or Best Offer+$6.35 delivery
- POLO RALPH LAUREN AUTHENTIC BOYS set of 2 SWIM TRUNK SHORTS Sz 3 & 4 NWTOpens in a new window or tabPre-Owned$13.95Buy It Now+$8.71 delivery
- Boys Rash Guard Swimsuit UPF 50+ UV Short Sleeve Shark Swimwear 2 PCS Sets BeachOpens in a new window or tabBrand New$13.98Buy It NowFree deliveryFree returnsTop Rated Plus
- New Nike Little Boys Logo 6" Volley Swim Shorts Choose Size & Color MSRP $34Opens in a new window or tabBrand New$17.95Buy It NowFree delivery
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- Janie&Jack Swim Trunks Boys Size 4Opens in a new window or tabPre-Owned$13.50or Best Offer+$4.84 delivery
- Rylee + Cru Color Blocked Board Shorts Little Boys' 4 Mulberry Elastic WaistOpens in a new window or tabBrand New$23.87or Best Offer+$5.95 deliveryFree returnsTop Rated Plus
- Laguna Striped Swim Trunks Little Boys 4 Blue Multi Elastic Waist Pull OnOpens in a new window or tabNew (Other)$14.95or Best Offer+$5.95 deliveryFree returnsTop Rated Plus
- Cat & Jack Boys SZ 4T Red/White/Blue Rash Guard TGT 🎯 swim shirt NWTOpens in a new window or tabBrand New$9.99or Best Offer+$5.95 deliveryFree returns
- POLO RALPH LAUREN AUTHENTIC BOYS BRAND NEW ORIGINAL SWIM TRUNK SHORTS Sz 4, NWTOpens in a new window or tabBrand New$26.95or Best Offer+$6.95 delivery in 2-4 days
- POLO RALPH LAUREN AUTHENTIC BOYS BRAND NEW ORIGINAL SWIM TRUNK SHORTS Sz 4, NWTOpens in a new window or tabBrand New$26.95or Best Offer+$6.95 delivery in 2-4 days
- 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
- NWT Gymboree Boy July 4th American Flag Star Swim trunk shorts Many sizesOpens in a new window or tabBrand New$14.98Was: $16.6510% offBuy It Now+$3.99 delivery7+ sold
- Vintage 80s Surfer Dude California Art Beach Boy's Size 4 Swimming Trunks ShortsOpens in a new window or tabPre-Owned$12.99or Best Offer+$4.99 deliveryFree returnsTop Rated Plus
- SPONGEBOB & PATRICK UPF-50+ Swim Trunks Bathing Suit NWT Boys 4, 5-6 or 7 $25Opens in a new window or tabBrand New$14.39Was: $15.9910% offBuy It Now+$4.95 deliveryFree returnsSave up to 20% when you buy moreTop Rated Plus
- Polo Ralph Lauren Boys Swim Trunks Shorts Classic Navy Sharks SZ 4 NWTOpens in a new window or tabBrand New$26.00Buy It Now+$5.85 delivery
- Kids Boys Swimsuit Diving Rash Guard Bathing Suit Beachwear Sets Outfits PoolOpens in a new window or tabNew (Other)$13.51 to $26.48Was: $24.436% offBuy It Now+$100.00 deliveryfrom China
- Boys Secret Wishes Smocked Swim Trunks Size 4Opens in a new window or tabPre-Owned$8.00Was: $10.0020% offor Best Offer+$5.00 delivery
- LOT OF 4: Hurley Swim Suits - Bathing Suits - Board Shorts - Youth Boys Size 4Opens in a new window or tabPre-Owned$28.50or Best Offer+$7.99 delivery
- Under Armour Boys Size 4 Baseball Rash Guard Swim Set Outfit Blue NEWOpens in a new window or tabBrand New$24.99Buy It Now+$6.55 delivery2 watchers
- Vilebrequin Boys Swim Shorts Tie Dye Size 4 PocketsOpens in a new window or tabPre-Owned$39.95or Best OfferFree delivery
- Sonic the HedgeHog ☆ Boys' Rash Guard and Swim Trunks Set ☆ Sizes 4-10/12Opens in a new window or tabBrand New$29.95Buy It NowFree deliveryFree returns
- Boys Ralph Lauren Red Logo Swim Shorts. Size 4TOpens in a new window or tabPre-Owned$25.00or Best Offer+$4.84 delivery
- 2 BOY'S CARTER'S SWIM SHORTS / TRUNKS~SIZE 4 / 5Opens in a new window or tabPre-Owned$7.00Buy It NowFree delivery
- TEA RASH GUARD SWIM SHIRT BOYS SIZE 4Opens in a new window or tabBrand New$10.00Buy It Now+$4.84 delivery
- Hurley Boy's 4 Way Stretch Quick Dry Back Pocket Swim ShortsOpens in a new window or tabBrand New$14.98List price: $38.0061% offBuy It NowFree delivery in 2-4 daysFree returns
- 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 days
- HURLEY BOY'S SWIM TRUNK, AURORA GREEN CHECK FOR SIZE BinO03Opens in a new window or tabBrand New$9.99Buy It Now+$6.40 deliverySave up to 10% when you buy more
- SONIC the HEDGEHOG SEGA UPF-50 Swim Trunks Bathing Suit NWT Boys Sz. 4, 5-6 or 7Opens in a new window or tabBrand New$14.39Was: $15.9910% offBuy It Now+$4.95 deliveryFree returnsSave up to 20% when you buy moreTop Rated Plus
- SONIC the HEDGEHOG SEGA UPF50+ Swim Trunks Bathing Suit Boys Sz. 4, 5-6 or 7 NWTOpens in a new window or tabBrand New$15.29Was: $16.9910% offBuy It Now+$4.95 deliveryFree returnsSave up to 20% when you buy moreTop Rated Plus
- Little Boy's Hurley Swimsuit Board Shorts Swim NEWOpens in a new window or tabBrand New$16.99Buy It NowFree deliveryFree returnsTop Rated Plus
- Wild About Me Blanks Boutique Boys Size 4T Seersucker Swim Trunks Lot Of 2Opens in a new window or tabPre-Owned$3.990 bids · Time left22h 17mor Best Offer+$4.71 delivery
- Lands’ End Boys Short Sleeve Navy Striped Rash Guard Size YS 4T EUC SPFOpens in a new window or tabPre-Owned$6.99or Best Offer+$5.99 delivery
- Hurley Youth Long Sleeve UPF 50+ Swim Top Black Size 4Opens in a new window or tabBrand New$9.95Buy It NowFree delivery
- Boys Swim Trunks with Compression Liner Toddler Stretch Swim ShortsOpens in a new window or tabNew (Other)$18.39Was: $19.998% offBuy It Now+$10.00 deliveryfrom China
- Super Mario Bros. ☆ Little Boys' Swim Trunks ☆ Sizes 4, 5/6, 7Opens in a new window or tabBrand New$19.95Buy It NowFree deliveryFree returns
- Speedo Boys Learn to Swim Jammer Trunks UPF +50 Black Size 4 NWT FREE SHIPOpens in a new window or tabBrand New$14.50or Best OfferFree delivery
- The North Face Boys Swim Trunks Board Shorts Size 4T Blue UPF 40+ SwimwearOpens in a new window or tabPre-Owned$22.44or Best Offer+$6.55 deliveryFree returnsTop Rated Plus
- Hurley Boys Swim Shorts And Rash Guard Size4TOpens in a new window or tabPre-Owned$2.000 bids · Time left2d 21h+$6.35 delivery
- Vilebrequin Boys Tropical Print Swim Shorts Trunks ~ 4/5Opens in a new window or tabPre-Owned$38.00or Best Offer+$4.84 delivery
- DC COMICS BATMAN Boys Sz 4T Blue Yellow SWIM BOARD SHORTS Swimming Trunk ToddlerOpens in a new window or tabPre-Owned$10.20Was: $12.7520% offor Best Offer+$4.97 deliveryFree returnsTop Rated Plus
- Tommy Bahama Boys Long Sleeve Rash Guard and Matching Swim Trunks Size 4Opens in a new window or tabPre-Owned$13.49or Best Offer+$5.80 delivery
- Nautica Boys Swim Shorts Size4TOpens in a new window or tabPre-Owned$0.990 bids · Time left2d 21h+$6.35 delivery
- Mini Boden Boys Swim Shorts With Undersea Print Size 3-4Y Drawstring WaistOpens in a new window or tabPre-Owned$18.00or Best Offer+$8.84 delivery
- NWT Crewcuts by J. Crew Little Boys Blue Candy Print Swim Trunks sz 4Opens in a new window or tabBrand New$15.00Buy It Now+$4.49 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
- Quiksilver Little Boy's Highline Hawaii Hawaiian Flag Board Shorts Blue 4/5/6Opens in a new window or tabBrand New$26.00Buy It NowFree delivery3+ watchers
- Old Navy Boys American Flag Swim Shorts Size 4TOpens in a new window or tabPre-Owned$0.990 bids · Time left2d 20h+$6.35 delivery
- Burberry Children Check Plaid Red Boys Swim Trunks Swimwear Shorts SZ 4Y | 104cmOpens in a new window or tabPre-Owned$38.77or Best Offer+$7.25 delivery
- TARGET CAT & JACK BOYS SWIM SHORTS TRUNKS SIZE 4T BLUE STRIPED SUMMER VIBESOpens in a new window or tabPre-Owned$4.99or Best Offer+$5.95 delivery in 2-3 days
- Boys Cat And Jack 4t Swim Trunks —Safari PrintOpens in a new window or tabPre-Owned$5.00or Best Offer+$4.84 deliveryExtra 20% off with coupon
- 4t Boys Swim Lot 7- 5 Shirts And 2 Trunks Well UsedOpens in a new window or tabPre-Owned$19.99or Best Offer+$9.45 delivery
- Polo Ralph Lauren Polo Bear Performance Rash Guard Little Boy's 4 Multicolor L/SOpens in a new window or tabBrand New$24.19or Best Offer+$5.95 deliveryFree returnsTop Rated Plus
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