1,900+ results
- Psycho Bunny Boys Size 5/6 swim trunks BlackOpens in a new window or tabPre-Owned$23.00or Best Offer+$4.84 delivery
- UV SKINZ green short sleeve UV Rash Guard Shirt Youth 4TOpens in a new window or tabPre-Owned$17.50Was: $49.9965% offor Best Offer+$6.95 delivery$10 off every $60
- NWT AUTHENTIC VILEBREQUIN SWIM TRUNKS - WATER REACTIVE - KIDS- BLUE - 4 YEARSOpens in a new window or tabBrand New$65.00or Best Offer+$5.95 deliveryFree returns
- NEW WITH TAGS AUTHENTIC VILEBREQUIN SWIM TRUNKS FOR KIDS - YELLOW - 4 YEARSOpens in a new window or tabBrand New$65.00or Best Offer+$5.95 deliveryFree returns
- NWT J. Crew Boys' Navy W/Hibiscus Floral Print Swim Trunk - SIZE 4Opens in a new window or tabBrand New$20.00or Best Offer+$6.40 delivery
- Pokémon Pikachu Boys Swim Shorts & Rash Guard Yellow Blue Short Sleeve Size 4Opens in a new window or tabPre-Owned$12.44or Best Offer+$5.54 deliveryFree returnsTop Rated Plus
- Nike Swim Boys Size 4 Blue Dri-Fit Long Sleeve Swim ShirtOpens in a new window or tabBrand New$15.00or Best Offer+$4.20 delivery
- Boys Ralph Lauren Red Logo Swim Shorts. Size 4TOpens in a new window or tabPre-Owned$25.00or Best Offer+$4.84 delivery
Picked For You
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 (1,970) 99.8%
- DSG Woven Training Shorts Volley Navy Blue Red Striped Boys Size XS (6-7) NWTOpens in a new window or tab$13.95barterpost_llc (1,746) 100%
- Hurley Board Shorts Boys Size XS 21x6 Floral Print BlackOpens in a new window or tab$20.00gmostwanted21 (4,369) 99.6%
- Charlie Rocket Boys Lobster Shorts, Blue, 4TOpens in a new window or tab$15.96beckysbargainbarn113 (13,395) 99.1%
- Volcom Little Boys Size 4 2 Pc L/S Olive Green Rash Guard + Swim Shorts BlackOpens in a new window or tabBrand New$21.00or Best OfferFree deliveryLast one
- Lot of 3 Mini Boden Boys' Swim Shorts Trunks Size 5-6 Mesh Liner DrawstringOpens in a new window or tabPre-Owned$25.00or Best Offer+$8.71 delivery
- 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
- 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
- Hurley Boy's UPF50+ Drawstring Waist Pull On Swim Short Midnight Navy 5/6Opens in a new window or tabBrand New$12.99or Best OfferFree deliveryFree returnsSave up to 20% when you buy moreTop Rated Plus
- NWT AUTHENTIC VILEBREQUIN SWIM TRUNKS - WATER REACTIVE SEAHORSE - KIDS - 4 YEARSOpens in a new window or tabBrand New$65.00or Best Offer+$5.95 deliveryFree returns
- Sundek Swin Trunk Boy's Green 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
- DSG Woven Training Shorts Volley Navy Blue Red Striped Boys Size XS (6-7) NWTOpens in a new window or tabBrand New$13.95or Best OfferFree delivery
- Super Mario Bros. Bowser Rash Guard Shirt Boys Size 4 NwtOpens in a new window or tabBrand New$19.95or Best OfferFree delivery
- Prodoh Swim Trunks Blue Tropical Boys Size 4Opens in a new window or tabBrand New$28.50or Best Offer+$5.62 delivery
- Lilly Pulitzer Boys Capri Swim Trunks Pink Blue White Lavender Size XSOpens in a new window or tabPre-Owned$22.99or Best Offer+$5.99 delivery
From our popular brands
Based on number of views and purchases | Sponsored- VilebrequinNWT AUTHENTIC VILEBREQUIN SWIM TRUNKS - WATER REACTIVE - KIDS- BLUE - 4 YEARSOpens in a new window or tabBrand New$65.00+$5.95 delivery
- VilebrequinNEW WITH TAGS AUTHENTIC VILEBREQUIN SWIM TRUNKS FOR KIDS - YELLOW - 4 YEARSOpens in a new window or tabBrand New$65.00+$5.95 delivery
- GapGap Kids Boys Size XSmall 4/5 Mesh Lined Blue Brown Floral Swim Trunks ShortsOpens in a new window or tabPre-Owned$8.99+$7.99 deliveryExtra 15% off with coupon
- HurleyHurley Kids Boys Black Shark Print Elastic Waist Swim Trunks Shorts Size 5/6Opens in a new window or tabPre-Owned$12.00+$5.99 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
- PatagoniaPatagonia $49 Kids Baggies Nylon Shorts 7" Lined Afternoon Pink Size XS (5-6)Opens in a new window or tabBrand New$44.00+$5.89 deliveryExtra 23% off
- GapBoys Drawstring Swim Trunks Short XS Red Print Floral Elastic Waist Gap ~ NewOpens in a new window or tabBrand New$19.99+$5.00 delivery
- QuiksilverQuiksilver Ocean Elastic Amphibian 14' Board Shorts Little Boys Midnight Navy 4Opens in a new window or tabBrand New$17.13+$5.95 delivery
- PatagoniaPatagonia Baggies Board Shorts Yellow Green Leaf Print XSOpens in a new window or tabPre-Owned$17.99+$6.55 delivery
- DisneyDisney Swim Shorts Boy's 5-6 Years Marvel's Spider-Man Trunks Shorts Size N8Opens in a new window or tabPre-Owned$10.00+$6.99 delivery
- DisneyDISNEY STORE STITCH BOYS YOUTH 5 / 6 SWIM TRUNKS PALM TREESOpens in a new window or tabPre-Owned$22.99+$6.00 delivery
- CrewcutsJ.Crew CrewCuts Boys Kids Long Sleeve Colorblock Rash Guard White Blue XSOpens in a new window or tabBrand New$19.99+$6.30 delivery
- Baby Shark SpongeBob Batman Swim Trunks Sz 4T Toddler VTG Y2KOpens in a new window or tabPre-Owned$25.00or Best Offer+$5.85 delivery
- 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
- The North Face Boys Swim Shorts Trunks XS 6 Logo Allover Print Digital Camo AOPOpens in a new window or tabPre-Owned$14.99or Best Offer+$5.49 deliveryExtra 10% off with coupon
- Boys Volcom Mod-Tech Board Shorts Swim Trunks Bathing Suit - 4TOpens in a new window or tabPre-Owned$14.99or Best Offer+$4.50 delivery
- Hurley Youth 5/6 Boy's UPF 50+ Long Sleeve Rash Guard Swim TopOpens in a new window or tabBrand New$9.09Was: $12.9930% offor Best OfferFree deliveryFree returnsTop Rated Plus
- New! Janie & Jack Boys Size 4 Flamingo Swim Trunks Shorts Suit UPF 50 NWT $42Opens in a new window or tabBrand New$21.95or Best Offer+$6.10 delivery in 2-4 days
- Patagonia Swim Suit Boys XS Youth 24" waist 5" inseam Elastic NAVY BLUE ShortsOpens in a new window or tabPre-Owned$12.95or Best Offer+$6.57 delivery
- Janie&Jack Swim Trunks Boys Size 4Opens in a new window or tabPre-Owned$13.50or Best Offer+$4.84 delivery
- Gap Kids Boys Size XSmall 4/5 Mesh Lined Blue Brown Floral Swim Trunks ShortsOpens in a new window or tabPre-Owned$8.99Was: $9.9910% offor Best Offer+$7.99 deliveryFree returnsExtra 15% off with couponTop Rated Plus
- 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
- Hurley Kids Boys Black Shark Print Elastic Waist Swim Trunks Shorts Size 5/6Opens in a new window or tabPre-Owned$12.00Was: $15.0020% offor Best Offer+$5.99 delivery
- Toobydoo Red & Blue Circle Shape Pattern Swim TrunksOpens in a new window or tabPre-Owned$15.00or Best Offer+$6.30 delivery
- Hanna Andersson Swim Shorts Star Wars Retro Colorful Stripes Elastic Waist 4Opens in a new window or tabPre-Owned$19.88or Best Offer+$4.52 delivery
- H&M Boys Swim Shorts Trunks Size 2-4 Years -EUCOpens in a new window or tabPre-Owned$4.50or Best Offer+$4.50 delivery
- Boys Disney 100 Swim Trunks Shorts Print Reveal 5 / 6 SpiderMan Marvel TwinsOpens in a new window or tabBrand New$25.00or Best Offer+$5.80 delivery
- Nike Swoosh Swim Shorts Trunks NESSB-451-001 Black / Gray Size XS NWTOpens in a new window or tabBrand New$25.00or Best Offer+$6.40 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
- Patagonia $49 Kids Baggies Nylon Shorts 7" Lined Afternoon Pink Size XS (5-6)Opens in a new window or tabBrand New$44.00or Best Offer+$5.89 deliveryExtra 23% off
- Nike Woven Mesh Lined Shorts Boys 5 Swim BottomsOpens in a new window or tabPre-Owned$7.50Was: $10.0025% offor Best OfferFree deliveryFree returns
- 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
- NWOT Y2K Orange County Choppers Boys Swim Trunks Sz XS Blue Black Flames MotoOpens in a new window or tabNew (Other)$16.96Was: $19.9515% offor Best Offer+$4.71 deliveryExtra 10% off with coupon
- 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
- Vintage Pokemon Shorts 4 Blue Poliwhirl Bulbasaur Psyduck Swim Trunks 90s Y2KOpens in a new window or tabPre-Owned$4.99or Best Offer+$5.80 deliveryFree returns
- Boys Orange Blue Dinosaur Rash Guard Swim Set Board Shorts Swim Trunks - 5-6Opens in a new window or tabBrand New$23.50or Best Offer+$9.45 delivery
- Disney Store Spider-Man Rashguard & Swim Trunks Boy's Swimsuit Swimwear NEW 5/6Opens in a new window or tabBrand New$49.99or Best Offer+$5.50 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
- LOT OF 3: Quicksilver Swim Bathing Suits - Board Shorts - Youth Boys Size 3 & 4Opens in a new window or tabPre-Owned$20.00or Best Offer+$7.99 delivery
- Polo Ralph Lauren Logo Swim Trunks Boys 4/4T Tie-Dye Multi Elastic DrawstringOpens in a new window or tabBrand New$25.24or Best Offer+$5.95 deliveryFree returns2 watchersTop Rated Plus
- Sonic The Hedgehog Boys 4 Graphic UPF 50+ Short Sleeve Rash Guard Swim Tee NWTOpens in a new window or tabBrand New$13.32Was: $15.6715% offor Best Offer+$5.99 deliveryFree returnsExtra 15% off with couponTop Rated Plus
- Toddler Boy Jurassic World Swim Trunks Size 4/5 XSOpens in a new window or tabPre-Owned$10.50or Best Offer+$4.84 delivery
- Adventure Wear By Class/Club Long Sleeve Rash Guard Size 4/5Opens in a new window or tabPre-Owned$0.99Time left3d 16hor Best Offer+$4.71 delivery
- Psycho Bunny Boys Swim Trunks Bathing Suit WAVES Blue Orange Pink Size 5/6Opens in a new window or tabPre-Owned$24.99or Best Offer+$5.99 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
- Boy's Disney Pixar Toy Story Swim Trunks Buzz Lightyear Woody - Boys Size 5/6Opens in a new window or tabPre-Owned$9.99or Best Offer+$6.55 deliveryFree returnsTop Rated Plus
- Boy's Crown & Ivy Sailboat Bathing Suit Swim Trunks Size 4TOpens in a new window or tabPre-Owned$12.00or Best Offer+$4.84 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
- Lilly Pulitzer Toddler Boys Swim Shorts New XSOpens in a new window or tabBrand New$40.00or Best Offer+$4.84 delivery
- Crewcuts by j.crew swim trunks Boys' light green & yellow star fish board shortsOpens in a new window or tabNew (Other)$15.00or Best Offer+$6.55 delivery
- Vtg Plaid Fish Boys Lizards Swim Trunks Shorts Bathing Suit Size 5/6 VGUCOpens in a new window or tabPre-Owned$27.95or Best OfferFree delivery
- Grave Digger Swim Shirt Size 4Opens in a new window or tabPre-Owned$3.00Time left5d 14hor Best Offer+$4.84 delivery
- Wildling Yellow Gingham Swim Shorts Size 4Opens in a new window or tabPre-Owned$39.99or Best Offer+$4.14 delivery
- Vilebrequin Boys Swim Shorts Tie Dye Size 4 PocketsOpens in a new window or tabPre-Owned$39.95or Best OfferFree delivery
- Cherokee | Boys Size XS (4-5) Blue Green Striped Shark Print Lined Swim TrunksOpens in a new window or tabPre-Owned$10.49Was: $14.9930% offor Best Offer+$5.99 delivery
- Vintage Boys Swim Trunks Shorts Size 4/5 Fish Extreme LimitOpens in a new window or tabBrand New$14.99or Best Offer+$6.55 deliveryFree returns
- Star Wars LEGO Kids Swim Trunks Shorts - Darth Vader / Stormtroopers Size 4/5Opens in a new window or tabBrand New$13.99or Best OfferFree deliveryFree returnsBuy 2, get 1 freeTop Rated Plus
- NWT New Disney Toy Story Boys Small 5/6 Lined UPF 50+ Swim Swimming TrunksOpens in a new window or tabBrand New$20.00or Best OfferFree delivery
- Baby Gap Boys 4 4T Swim Trunks Blue Ocean Scene Sailboat Birds Summer BeachOpens in a new window or tabPre-Owned$21.99or Best Offer+$4.52 delivery
- New Kids Minecraft Rashguard Swim Shirt Boys Size 4 4T Green UPF 50+Opens in a new window or tabBrand New$11.00or Best OfferFree delivery
- BOYS 4T CHILDRENS PLACE SWIM TRUNKS BLUE GREEN PRINT NWOTOpens in a new window or tabNew (Other)$6.99or Best Offer+$4.84 delivery
- Under Armour Boys 2 Piece Swim Tee And Trunk Shorts Set Size 4 Glacier BlueOpens in a new window or tabBrand New$25.99Was: $39.9935% offor Best Offer+$3.99 deliveryFree returnsTop Rated Plus
- Boys Lot of 3 Swim Shorts Cat & Jack All in Motion Size XS (4-5)Opens in a new window or tabBrand New$19.99or Best Offer+$5.99 delivery
- Boys Surf Shorts Size 4 Swim Drawstring Hook And Loop Pockets Blue PolyesterOpens in a new window or tabBrand New$4.99or Best Offer+$4.99 deliveryFree returnsTop Rated Plus
- Minecraft Black and Green UPF 50+ Sun Shirt Boys Size 4TOpens in a new window or tabBrand New$10.46Was: $14.9530% offor Best OfferFree delivery
- Sundek Boys Fluo Orange Swim Trunks Shorts Rainbow Size 4Opens in a new window or tabBrand New$61.00or Best OfferFree delivery
- Thomas & Friends Swim Trunks 4T Boys Faster! Faster! Thomas the tank engineOpens in a new window or tabPre-Owned$9.60Was: $12.0020% offor Best Offer+$5.75 delivery
- Items Per Page
