1,400+ results
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- NEW Lot of 2 NIKE Athletic Shorts & Swim / Boardshorts Boy's Sz 4 NWTOpens in a new window or tabBrand New$11.99or Best Offer+$4.30 delivery
- UV SKINZ green short sleeve UV Rash Guard Shirt Youth 4TOpens in a new window or tabPre-Owned$15.00Was: $49.9970% offor Best Offer+$6.95 delivery$10 off every 3 items
- Psycho Bunny Maybrook Bunny Print Little Boy 4 XXXSOpens in a new window or tabPre-Owned$14.99or Best Offer+$6.50 deliveryFree returnsTop Rated Plus
- VTG Size 4/5 RUGRATS Nickelodeon Swim Trunks Boys Green Mesh LiningOpens in a new window or tabPre-Owned$35.00or Best Offer+$6.25 delivery
- 3 Piece Lot Of Boys Baby Gap Swimsuits Size 4T/XSOpens in a new window or tabPre-Owned$9.50Time left1h 35mor Best Offer+$7.15 delivery
- Disney Mickey Mouse swimming Trunks 3T And Sun shirt 4T Bathing Suit Pool BeachOpens in a new window or tabPre-Owned$16.00or Best OfferFree delivery
- MINI BODEN Camo Swim Trunks 4/5 Boys y2k FADED Shorts Camouflage Colorful VtgOpens in a new window or tabPre-Owned$13.30Was: $14.005% offor Best Offer+$6.84 delivery
- AIR JORDAN Boys Mesh Lined Board Shorts Swimsuit Trunks Black Sz 4 XS 3-4 YearsOpens in a new window or tabBrand New$27.95or Best OfferFree delivery
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- Batman & Spiderman Boys Swim Trunks Marvel Dreamwave Two Pair Size 4 UPF 50+Opens in a new window or tabBrand New$18.44or Best Offer+$7.79 deliveryExtra 15% off with coupon
- Vineyard Vines Boys Chappy Swim Trunks Size 4T Swim Suit Seahorse Print BeachOpens in a new window or tabPre-Owned$22.00or Best Offer+$6.55 delivery
- NEW Mini Boden Boys Swim Suit Trunks SZ 4-5Y Tropical Print Parrots Lined NWT$32Opens in a new window or tabBrand New$18.98Was: $26.0027% offor Best Offer+$4.99 delivery
- billabong dr seuss Shorts Boys 4/S Black Swim Pool Summer BeachOpens in a new window or tabPre-Owned$20.00or Best Offer+$5.50 delivery in 2-4 daysFree returnsExtra 22% off with couponTop Rated Plus
- NWT AUTHENTIC VILEBREQUIN SWIM TRUNKS - WATER REACTIVE - KIDS- BLUE - 4 YEARSOpens in a new window or tabBrand New$65.00or Best Offer+$5.95 delivery in 2-4 daysFree returns
- Scooby Doo Life Guard Swim Trunks Boys 4Opens in a new window or tabPre-Owned$13.50Was: $15.0010% offor Best Offer+$4.51 delivery
- Hurley Boy's 4 Way Stretch Quick Dry Swim Shorts size L (10-12) SharksOpens in a new window or tabPre-Owned$8.00or Best Offer+$6.95 delivery
- Orlebar Brown Swim Shorts NYC New York City all over print boys size 4 blackOpens in a new window or tabPre-Owned$60.00or Best Offer+$4.84 delivery
- NWT AUTHENTIC VILEBREQUIN SWIM TRUNKS - WATER REACTIVE SEAHORSE - KIDS - 4 YEARSOpens in a new window or tabBrand New$65.00or Best Offer+$5.95 delivery in 2-4 daysFree returns
- Rylee & cru Boy Swim Trunks Set (Sz 4-5)Opens in a new window or tabPre-Owned$35.99or Best Offer+$4.52 delivery
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Based on number of views and purchases | Sponsored- NikeBrand New$11.99+$4.30 delivery
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- GapPre-Owned$20.20Free delivery
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- Hurley Boy's UPF50+ Drawstring Waist Pull On Swim ShortOpens in a new window or tabBrand New$14.60or Best Offer+$4.84 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
- Vineyard Vines Outward Whole Blue Size 4T Printed Chappie TrunksOpens in a new window or tabBrand New$19.97or Best OfferFree delivery
- NWT Wonder Nation Gradient Swim Trunks with Stripes; Size 4-5Opens in a new window or tabBrand New$12.00or Best OfferFree delivery
- Speedo Boys' Classic Stripe Blocked Swim Short 18'' Bottom Marine Green XXS 4/5Opens in a new window or tabBrand New$11.86Was: $14.8220% offor Best Offer+$7.95 delivery
- NWT Speedo little boys water shoes size 5-6Opens in a new window or tabBrand New$10.00or Best Offer+$7.80 delivery
- Old Navy Whale Print Swim Trunks Boys Size 4TOpens in a new window or tabPre-Owned$2.99Was: $3.9925% offor Best Offer+$5.25 delivery
- Wild About Me Blanks Boutique Boys Size 4T Seersucker Swim Trunks Lot Of 2Opens in a new window or tabPre-Owned$3.99Time left6d 18hor Best Offer+$4.71 delivery
- Vintage Patsy Aiken Designs Kids Toddler Shorts Golf Color Block Swim ShortsOpens in a new window or tabPre-Owned$14.49or Best Offer+$6.55 deliveryFree returnsExtra 10% off with coupon
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- Class Club Boys Swimsuit Cherry Tomato Palm Print Swimwear Stretch Trunk Sz 4/5Opens in a new window or tabPre-Owned$14.95Was: $18.6920% offor Best Offer+$6.95 delivery
- Pottery Barn Kids Boys Sz. 4/6 Blue Terry “ Monster” Hooded Swim CoverOpens in a new window or tabPre-Owned$13.99or Best Offer+$7.89 deliveryFree returnsExtra 10% off with coupon
- Vintage snoopy kids swimsuit trunks shortsOpens in a new window or tabPre-Owned$30.00or Best Offer+$4.71 delivery
- Under Armour Rash Guard Tee and Swim Trunks Outfit 2 piece Boys Size 4Opens in a new window or tabBrand New$30.16or Best Offer+$6.99 delivery
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- 2004 Spider-Man Swim TrunksOpens in a new window or tabNew (Other)$16.00or Best Offer+$4.71 delivery
- Hurley Rainbow Board Shorts Swim Beach Pool Surf Boys Size 4Opens in a new window or tabPre-Owned$13.00or Best Offer+$4.84 delivery
- Under Armour Kids Swim 2 Piece Set Tee & Trunks Size 4 Graphic Logo UPF 50+Opens in a new window or tabBrand New$23.79Was: $27.9915% offor Best Offer+$4.57 delivery in 2-4 daysFree returnsTop Rated Plus
- Sonic The Hedgehog Boys 4 Graphic UPF 50+ Short Sleeve Rash Guard Swim Tee NWTOpens in a new window or tabBrand New$9.40Was: $15.6740% offor Best Offer+$5.99 deliveryFree returnsExtra 15% off with couponTop Rated Plus
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- Wonder Nation Boys Size 4-5 Swim Trunks Multicolor W/ PocketOpens in a new window or tabBrand New$4.00or Best Offer+$4.51 delivery
- Lot Of Boys Rash Guards Size 4-5 (2) And 6-7Opens in a new window or tabPre-Owned$3.00Time left4d 6hor Best Offer+$8.71 delivery
- The Beaufort Bonnet Company Boys' Swim Trunks Size 4T New With TagsOpens in a new window or tabBrand New$40.00or Best Offer+$4.51 delivery
- Janie and Jack Boys Recycled Striped Swim Trunk Shorts Beach Blue White Size 4Opens in a new window or tabPre-Owned$21.00or Best Offer+$5.50 delivery
- Laguna Toddler Boy Size 4 Swim Set Rash Guard & Shorts Trunks Orange Red CrabOpens in a new window or tabPre-Owned$10.98Time left2d 17hor Best Offer+$7.25 delivery
- Speedo Boys Learn to Swim Jammer Trunks UPF +50 Scuba BlueOpens in a new window or tabBrand New$15.00or Best Offer+$3.98 delivery
- Speedo Competitive Swimwear Fast Skins FSII Black Jammer 7050153 Boys Size 22Opens in a new window or tabBrand New$44.95or Best Offer+$7.00 delivery in 2-4 days
- Hurley • Size 4 Boys • Beach Pool Summer • Shorts • GreenOpens in a new window or tabPre-Owned$9.99or Best OfferFree delivery
- Prodoh Boys Boogie Board Swim Trunks - Blue Tropical Breeze Boat Print 4TOpens in a new window or tabPre-Owned$32.00or Best Offer+$4.84 delivery
- Hanna Andersson Toddler Boys Swim Trunks Blue White Bandana Print Sz 4T (100 Cm)Opens in a new window or tabPre-Owned$12.00or Best Offer+$6.55 deliveryFree returnsTop Rated Plus
- NWT Baby Gap Disney Boys Mickey Mouse Swim Trunks Swimsuit Shorts Sz 4 ToddlerOpens in a new window or tabBrand New$19.90Was: $24.8820% offor Best Offer+$4.99 deliveryFree returnsTop Rated Plus
- Toy Story Woody Swim Top Kids Size 4Opens in a new window or tabPre-Owned$9.00or Best Offer+$4.08 delivery
- Boys Cat And Jack 4t Swim Trunks —Safari PrintOpens in a new window or tabPre-Owned$5.00or Best Offer+$4.84 delivery
- NWT Boys Size 10/25 Hurley Swim Board Shorts Trunks Blue Lazer drawstringOpens in a new window or tabBrand New$18.88or Best Offer+$6.55 deliveryLast one
- Trunks Surf & Swim Co Size 4 Used Swim Shirt Rashguard Blue, Shark Theme, UsedOpens in a new window or tabPre-Owned$1.50or Best Offer+$4.84 delivery
- Mojang Minecraft Size 4 Boys Swim Trunks Upf +50 Comfort Liner New quick dryOpens in a new window or tabBrand New$17.01Was: $22.9926% offor Best Offer+$4.99 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
- Hanna Anderson boys swim trunks size 4 or 100 cm palm trees surfboardsOpens in a new window or tabPre-Owned$18.00or Best Offer+$5.57 delivery
- Heat American Flag Bathing suit trunks. Boys size 4Opens in a new window or tabPre-Owned$17.00or Best Offer+$4.84 delivery
- 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
- DISNEY STORE TOY STORY SWIM TRUNKS RARE Print SZ 4Opens in a new window or tabPre-Owned$18.00or Best Offer+$4.84 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
- Art Class Boy Swim Trucks Swim Shorts Size 4Opens in a new window or tabNew (Other)$5.50or Best Offer+$4.51 delivery
- Disney Planes Cat & Jack Wonder Nation Boys Swim Trunks Sz 4/5 4 5 XS Lot Of 3Opens in a new window or tabPre-Owned$20.00or Best Offer+$5.85 delivery in 2-4 days
- Tom & Teddy Boys Size 3/4 Blue Flamingo Swim TrunksOpens in a new window or tabPre-Owned$10.50or Best Offer+$4.52 delivery
- Wonder Nation Shark Swimsuit Lined Swim Trunks Shorts Swimwear Blue Boys Sz 4/5Opens in a new window or tabPre-Owned$12.00or Best Offer+$8.71 delivery
- Nike Boys Volley Shorts Swim Trunks Blue Lightning 4-5 yearsOpens in a new window or tabNew (Other)$15.40Was: $22.0030% offor Best OfferFree deliveryFree returnsTop Rated Plus
- Lot of Boys Youth Swim Trunks Size 4/5 XSOpens in a new window or tabPre-Owned$19.99or Best Offer+$5.00 delivery
- Star Wars Matching Rash Guard Swimming Shirt 9/10 & Matching Shorts 7/8 BoysOpens in a new window or tabPre-Owned$17.49Was: $24.9930% offor Best Offer+$5.80 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
- NWT! Snapper Rock Mens Tropicana Vacay Sustainable Swim Short Size 4 $79Opens in a new window or tabBrand New$65.00or Best Offer+$4.95 delivery
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