1,600+ results
- 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
- New w Tags Sesame Street Cookie Monster Swim Trunks Boys 4T Vintage Bathing SuitOpens in a new window or tabBrand New$40.00or Best Offer+$5.26 delivery10 watchers
- Janie&Jack Swim Trunks Boys Size 4Opens in a new window or tabPre-Owned$13.50or Best Offer+$4.84 delivery
- Hanna Andersson Boys' Rainbow Swim Trunks Size 4Opens in a new window or tabPre-Owned$18.00Buy It NowFree delivery
- Boden Boys 9 Yr Swim Trunks Sea Life Elastic Drawstring Waist Pockets MulticolorOpens in a new window or tabPre-Owned$15.59Buy It Now+$6.55 delivery
- ABERCROMBIE AND FITCH KIDS SWIM TRUNKS CAR & HAWAIIAN FLOWER PRINT SIZE 9/10Opens in a new window or tabPre-Owned$5.500 bids · Time left4d 6hor Best Offer+$6.55 delivery
- ABERCROMBIE AND FITCH KIDS SWIM TRUNKS BLACK AND GRAY SIZE 9/10Opens in a new window or tabPre-Owned$4.950 bids · Time left4d 6hor Best Offer+$6.55 delivery
- NWT REEL LEGENDS Boy's Swim Trunks Board Shorts Red/white/navy whirl XXL(18)Opens in a new window or tabBrand New$11.00Buy It Now+$5.60 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 (1,925) 100%
- Sundek Boys Fluo Orange Swim Trunks Shorts Rainbow Size 4Opens in a new window or tab$61.00stores4family (1,051) 100%
- Sundek Swin Trunk Boy's Green Rainbow Size 4Opens in a new window or tab$61.00stores4family (1,051) 100%
- NWT Tommy Hilfiger Swim Shorts Trunks Red Shorts Boys Kids Size 4 Fits 30W NewOpens in a new window or tab$19.95mercedes000000 (5,170) 99.1%
- The Children's Place Printed Swim Trunks Boys Size XXL Navy PolyesterOpens in a new window or tab$15.29lrspecialty (3,228) 99.4%
- New! Boy's Hurley Multi Stripes Swim Trunks Multiple SizesOpens in a new window or tab$29.95rotehale (1,029) 98.8%
- Art Class Boys Black Swimming Trunk Short Size 4Opens in a new window or tab$7.99wqdeals (1,473) 100%
- Disney Star Wars Boy Swim Trunks Size 9/10 NewOpens in a new window or tab$20.00georgiaonmymind06 (15,039) 99.6%
- 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 deliveryFree returns1+ watchersTop Rated Plus
- Boys Disney Mickey Swim Trunks Size 4T Multi-color + Bath BookOpens in a new window or tabPre-Owned$10.00or Best Offer+$8.54 delivery
- H&M Toddler Swim Shorts Trunks Size 2-4 Years Drawstring & Elastic Waist LinerOpens in a new window or tabPre-Owned$12.50or Best Offer+$4.99 delivery
- Star Wars Mandalorian Baby Yoda Boy's Long Sleeve Splash Guard/Swim Trunk, 2pcOpens in a new window or tabBrand New$22.98List price: $32.5029% offBuy It NowFree deliveryFree returnsTop 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
- 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 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
- Tommy Bahama Boys Orange Polyester Swimshorts Drawstring Elastic Waist Sz XS 4Opens in a new window or tabPre-Owned$10.99or Best Offer+$4.84 delivery
- Batman boys swimsuit Rash Guard Bathing suit Batman Kids 3Pc Swim Set UPF 50+Opens in a new window or tabBrand New$19.99Buy It NowFree deliverySave up to 10% 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 deliveryFree returnsTop Rated Plus
- Paw Patrol Swim Trunks Bathing Suit Yellow Blue Chase Rubble Size 4t 4 toddlerOpens in a new window or tabPre-Owned$9.99Buy It Now+$5.99 delivery
- Lot of (3) Boys Swim Trunks Size 4, Vineyard Vines, Hanna AndersonOpens in a new window or tabPre-Owned$35.00or Best Offer+$12.71 delivery
From our popular brands
Based on number of views and purchases | Sponsored- VilebrequinNWT AUTHENTIC VILEBREQUIN SWIM TRUNKS - WATER REACTIVE SEAHORSE - KIDS - 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
- DisneyStar Wars Mandalorian Baby Yoda Boy's Long Sleeve Splash Guard/Swim Trunk, 2pcOpens in a new window or tabBrand New$22.98Free delivery
- PatagoniaPatagonia Baggies 2XL Bathing Suit Boys Shorts Lined Swim Trunks DrawstringOpens in a new window or tabPre-Owned$24.29+$5.99 delivery
- DisneyMickey Mouse Trunks Kids Size 4 Disney Tropical Swimming For Summer UPF 50 +Opens in a new window or tabBrand New$10.53+$7.95 delivery
- Trunkskanu surf swim trunks Kids size 4 blue shortsOpens in a new window or tabBrand New$9.00+$4.00 delivery
- PatagoniaPATAGONIA Boys XXL BAGGIES SHORT 67052 Swim Trunks Lined 8” Inseam HYBRIDOpens in a new window or tabPre-Owned$19.55+$8.71 delivery
- HurleyNew! Boy's Hurley Multi Shark Print Swim Trunks Multiple SizesOpens in a new window or tabBrand New$29.95Free delivery
- 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
- SpeedoLot of 7, New Gap, Cat & Jack Swim Trunks and shirts, Size XL to XXL (age 12-16)Opens in a new window or tabBrand New$65.00Free delivery
- QuiksilverQuicksilver Board Shorts Boys 4T Swimsuit Trunks Surf Beach Retro Stripe Y2K VTGOpens in a new window or tabPre-Owned$5.85+$6.15 delivery
- ArtArt Class 4 Board Shorts Swim Trunks Suit Palm All Over Print Drawstring ShortsOpens in a new window or tabPre-Owned$5.84+$6.05 delivery
- Wonder Nation Boys "Dinosaurs" Quick Dry Swim Trunks, Size XXL(18)/NewOpens in a new window or tabBrand New$5.60Was: $8.0030% offBuy It Now+$5.88 deliveryExtra 10% off with coupon
- Lilly Pulitzer Boys Kids Swim Trunks Shorts Bathing Suit Sz 4 Lined *Faded*Opens in a new window or tabPre-Owned$10.00or Best Offer+$4.84 delivery
- Wonder Nation Boys "Blue Sharks" Quick Dry Swim Trunks, Size XXL(18)/NewOpens in a new window or tabBrand New$5.60Was: $8.0030% offBuy It Now+$5.88 deliveryExtra 10% off with coupon
- Scooby-Doo! NEW Boys Swim Trunks size 4T -Throwback/VintageOpens in a new window or tabBrand New$15.00or Best Offer+$9.27 delivery
- Boys 4T Swim Trunks Sunset Palm Trees Beach Orange Blue Cat And JackOpens in a new window or tabPre-Owned$6.95Buy It Now+$3.95 delivery
- 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$15.99Buy It Now+$4.95 delivery in 2-4 daysFree returnsSave up to 20% when you buy moreTop Rated Plus
- NWT tea Boys Shortie Swim Trunks Blue Green Fish Print Size 4 ToddlerOpens in a new window or tabBrand New$18.00Buy It Now+$5.88 delivery
- PLAY Vtg MINI BODEN Boys Camo Camouflage Colorful Swim Shorts Trunks Size 4/5Opens in a new window or tabPre-Owned$20.00or Best Offer+$6.84 delivery
- Patagonia Baggies 2XL Bathing Suit Boys Shorts Lined Swim Trunks DrawstringOpens in a new window or tabPre-Owned$24.29Was: $26.9910% offor Best Offer+$5.99 delivery
- Mickey Mouse Trunks Kids Size 4 Disney Tropical Swimming For Summer UPF 50 +Opens in a new window or tabBrand New$10.53or Best Offer+$7.95 delivery
- 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
- Agua Bendita Boys Floral Print Drawstring Mesh Lined Swim Trunks Green Size 4Opens in a new window or tabBrand New$44.99List price: $80.0044% offor Best Offer+$4.95 deliveryExtra 25% off with coupon
- New Nwt Star Wars All Over Travel Sticker Print Swim Trunks For Kids Sz 4Opens in a new window or tabBrand New$17.49Buy It NowFree delivery in 2-4 daysFree returnsTop Rated Plus
- 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
- Ocean Pacific Swim Trunks Boys 4 Red Classic Cars Palm Tree Lined OP ShortsOpens in a new window or tabPre-Owned$6.29Was: $6.9910% offor Best Offer+$4.99 deliveryFree returnsTop Rated Plus
- OP Ocean Pacific Shark Swim Trunks Shorts Boy Size XXL 2XL 18 UPF 50+ NWTOpens in a new window or tabBrand New$19.99Buy It NowFree delivery
- UNDER ARMOUR UPF 50+ 2PC Rash guard & Trunks OR UPF 50 Swim Trunks;Sz 4-7,YS-YMOpens in a new window or tabBrand New$22.99 to $32.99Buy It NowFree delivery in 2-4 days10% off $40+ with coupon
- Little Kid Boy Swim Set Umbro Swim Trunk and Gymboree Rash Guard Black XS 4Opens in a new window or tabBrand New$11.87Buy It Now+$4.95 delivery in 2-4 days
- Norty Little Boys/Big Boys 4 - 20 Swim Trunk Bathing Suit Boardshort Water ShortOpens in a new window or tabBrand New$13.90 to $18.90Buy It NowFree delivery
- VINTAGE RALPH LAUREN POLO PURPLE PLAID LINED SWIM TRUNKS BOYS SIZE 4 SWIMSUIT 4TOpens in a new window or tabPre-Owned$25.00or Best Offer+$4.62 delivery
- Hatley Dinosaur Swim Trunks Boy’s Size 4Opens in a new window or tabPre-Owned$6.00Buy It Now+$6.55 delivery
- Disney Collection NWT Boys Mickey Mouse Swim Trunks. UPF 50+. Size 9. Tropical.Opens in a new window or tabBrand New$15.30Was: $18.0015% offBuy It Now+$9.45 delivery
- Hurley boys board shorts Swim Trunks Size 4 blue Kids YouthOpens in a new window or tabPre-Owned$5.99or Best Offer+$6.00 deliveryFree returnsExtra 20% off with couponTop Rated Plus
- Hurley Boys Size 4T Swim TrunksOpens in a new window or tabPre-Owned$8.500 bids · Time left5d 3hor Best Offer+$4.51 delivery
- Disney kids Size 4 Swim Trunks And Rash Guard Two Sets Mickey , Spider Man (Q)Opens in a new window or tabPre-Owned$25.00Buy It Now+$6.30 delivery
- Wonder Nation Boys "Sharks & Stripes" Quick Dry Swim Trunks, Size XXL(18)/NewOpens in a new window or tabBrand New$5.60Was: $8.0030% offBuy It Now+$5.88 deliveryExtra 10% off with coupon
- Boys Old Navy & Gap Swim Trunks size 4 lot of 5 pairOpens in a new window or tabPre-Owned$18.00or Best Offer+$8.35 delivery
- Disney Collection NWT Boys Mickey Mouse Swim Trunks UPF 50+ Size 9 TropicalOpens in a new window or tabBrand New$12.99Buy It Now+$6.55 delivery
- Disney Toddler Swim Trunks Mickey Mouse Donald Duck Mickey's Surf ClubOpens in a new window or tabPre-Owned$6.00or Best Offer+$5.75 deliveryFree returnsTop Rated Plus
- New Carter's Crab Swim trunk Shorts Orange UPF 50+Opens in a new window or tabBrand New$12.95Was: $14.3910% offBuy It NowFree delivery1+ watchers
- SPONGEBOB SQUAREPANTS UPF-50+ Swim Trunks Bathing Suit NWT Boys 4, 5-6 or 7 $25Opens in a new window or tabBrand New$15.99Buy It Now+$4.95 delivery in 2-4 daysFree returnsSave up to 20% when you buy moreTop Rated Plus
- Minecraft Boys Swimsuit Size 4-12 Swim Trunks Rash Guard Shirt Set Creeper 5 NWTOpens in a new window or tabBrand New$29.80 to $36.80Buy It Now+$5.35 delivery
- BODEN Mini Boys Size 4 4Y Swim Shorts Trunks Sea Ocean Animal Fish Shark BeachOpens in a new window or tabPre-Owned$14.99or Best Offer+$5.99 delivery in 2-4 days
- Under Armour Boys Size 4 Blue Camo Swim Trunks NEWOpens in a new window or tabBrand New$17.99Buy It Now+$6.55 delivery
- POLO RALPH LAUREN Boys Swim Shorts Trunks SIZE 4 Blue Check RED PONY 0045Opens in a new window or tabPre-Owned$17.50Was: $25.0030% offBuy It Now+$6.55 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 delivery in 2-4 daysFree returnsTop Rated Plus
- Boys Swim Trunks + hat dino Bundle Size 4T cat & jack tommy BahamaOpens in a new window or tabPre-Owned$15.90Was: $17.6710% offBuy It Now+$7.99 delivery
- Fair Harbor Boys Kids Lined Hybrid One Shorts Swim Trunks 6" Inseam-Gray-Sz XXLOpens in a new window or tabPre-Owned$19.99or Best Offer+$5.75 delivery
- Hurley Aqua Blue Sharks Boys Youth Swimsuit Shorts Trunks Size 4 Tropical TwistOpens in a new window or tabBrand New$20.79Was: $25.9920% offor Best Offer+$4.84 delivery
- NWT Under Armour swim set size 4 5 7Opens in a new window or tabBrand New$32.00Buy It NowFree delivery
- Disney Cars Boys 4T Swim TrunksOpens in a new window or tabPre-Owned$6.95or Best Offer+$4.84 delivery
- Hurley Boys Swim Trunks Shorts 4 Black Sharks Drawstring Inner Lining PocketOpens in a new window or tabBrand New$19.77or Best OfferFree delivery
- NWT Gap Boy's 6" Recycled Swim Trunks Colorblock Swim Shorts Sz XS, S, XL, XXLOpens in a new window or tabBrand New$13.50Buy It Now+$5.50 delivery
- Nike Swim Trunks Youth XXL Black Lined DrawstringOpens in a new window or tabPre-Owned$11.99Was: $19.9940% offor Best Offer+$5.99 delivery in 2 daysFree returnsTop Rated Plus
- Old Navy Swim Trunks Boys 18 Yellow Dinosaur Surfer 7 Inch Inseam Mesh LinedOpens in a new window or tabPre-Owned$5.00or Best Offer+$7.00 delivery
- Little Boy's Youth Hurley 2 Piece UPF 50+ H2O Dri Swim Shirt Swim Trunks SetOpens in a new window or tabBrand New$26.99Buy It NowFree delivery in 2-4 daysFree returnsTop Rated Plus
- NWOT Laguna Boys Palm Tree Print Swim Trunks Shorts Black Blue Pink Size 4Opens in a new window or tabNew (Other)$11.24Was: $14.9925% offor Best Offer+$4.33 delivery
- Boys Sol Swim $18 Assorted Swim Trunks Sizes 4, 5, 6 & 7Opens in a new window or tabBrand New$12.00Buy It NowFree deliveryFree returns
- Under Armour Boys 2-Piece Swim Set Surf Shirt & Volley Shorts Size 4 $40 NWTOpens in a new window or tabBrand New$18.00Buy It Now+$6.20 delivery
- Under Armour Little Boys Blue Red White Swim Trunks Patriotic NEWOpens in a new window or tabBrand New$18.99Buy It Now+$6.55 delivery
- Bella Bliss Swim Trunks Boys Size 4Opens in a new window or tabBrand New$18.00or Best Offer+$4.84 delivery
- Kanu Surf Boys' Swim Trunk, Ages 4-7 YearsOpens in a new window or tabBrand New$13.99Buy It NowFree deliverySave up to 12% when you buy more
- Items Per Page
