1,100+ results
- 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
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- Vintage Size Boys Flarico Swim Athletic Supporter Boys Size X-Small From 1970sOpens in a new window or tabBrand New$19.95Buy It Now+$4.95 delivery
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- Vintage Size Boys Flarico Swim Athletic Supporter Boys Size X-Small From 1970sOpens in a new window or tabBrand New$18.95Buy It Now+$4.95 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 deliveryFree returnsSave up to 30% when you buy moreTop Rated Plus
Picked For You
Top selling items from trusted sellers | Sponsored- Hurley Board Shorts Boys Size XS 21x6 Floral Print BlackOpens in a new window or tab$20.00gmostwanted21 (4,363) 99.6%
- Member's Mark Boy's 4-Way Stretch Quick Dry Resort Swim TrunkOpens in a new window or tab$10.99ewirelessgear (169,273) 99.7%Save up to 30% when you buy more
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- Speedo Boys 2pk Swim Tee Short Sleeve new with tagsOpens in a new window or tab$15.30thebestforless75 (4,895) 100%
- Cherokee Boy's Swim Trunks Blue Skulls Size XSOpens in a new window or tab$14.25mjaybell24 (9,349) 99.2%
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- Member's Mark Boys 4Way Stretch Quick Dry UPF50 Sun Protection Resort Swim TrunkOpens in a new window or tabBrand New$11.99List price: $30.0060% offBuy It NowFree deliveryFree returnsSave up to 30% when you buy moreTop Rated Plus
- 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
- Gap Boys Drawstring Swim Trunks Short XS Red Print Floral Elastic Waist ~ NewOpens in a new window or tabBrand New$19.99or Best Offer+$5.00 delivery
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- Patagonia Boys XS Extra Small Orange Swim Trunks Bottoms Shorts SolidOpens in a new window or tabPre-Owned$17.00Buy It NowFree delivery
- Nike Swim Trunks Boys XS *estimated* Light Blue Brief LinedOpens in a new window or tabPre-Owned$12.00Buy It Now+$4.99 deliveryFree returnsTop Rated Plus
- Hurley Board Shorts Boys Size XS 21x6 Floral Print BlackOpens in a new window or tabPre-Owned$20.00or Best OfferFree deliveryFree returns
- O'Rageous Heather Stripe Boys Size XL Swim TrunksOpens in a new window or tabBrand New$18.44Was: $20.4910% offor Best Offer+$5.99 deliveryFree returnsExtra 20% off with coupon
- 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
- Lilly Pulitzer Boys Size Toddler 3-4 Junior Capri Swim Trunks Bathing SuitOpens in a new window or tabPre-Owned$19.95Buy It NowFree delivery
- Chubbies Kids Swimming Trunks 4T-5TOpens in a new window or tabPre-Owned$20.00or Best Offer+$4.71 delivery
- Chubbies NEW NWT Youth XS Classic Lined Swim Trunks True BluesOpens in a new window or tabNew (Other)$30.00or Best Offer+$4.84 delivery
From our popular brands
Based on number of views and purchases | Sponsored- 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
- NikeNike Swim Trunks Boys XS *estimated* Light Blue Brief LinedOpens in a new window or tabPre-Owned$12.00+$4.99 delivery
- HurleyHurley Board Shorts Boys Size XS 21x6 Floral Print BlackOpens in a new window or tabPre-Owned$20.00Free delivery
- GapGap Boys Drawstring Swim Trunks Short XS Red Print Floral Elastic Waist ~ NewOpens in a new window or tabBrand New$19.99+$5.00 delivery
- SpeedoSpeedo Mid Length Redondo Swimsuit Size XXS (4/5)Opens in a new window or tabBrand New$25.00+$4.00 delivery
- DisneyCars 3 ~ Disney/Pixar Characters Little Boys Swim Shorts Size XS 4/5Opens in a new window or tabPre-Owned$12.95+$4.00 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
- TrunksBuc-ees Youth Xs Lined Polyester Shorts Swim Trunks BuceesOpens in a new window or tabPre-Owned$9.29+$4.84 delivery
- PatagoniaPatagonia Baggies Board Shorts Yellow Green Leaf Print XSOpens in a new window or tabPre-Owned$17.99+$6.55 delivery
- SpeedoSpeedo Boys 2pk Swim Tee Short Sleeve new with tagsOpens in a new window or tabNew (Other)$15.30Free delivery
- HurleyHURLEY Character Check Pull-On Swim Trunks 28 in W Boys L Mens XSOpens in a new window or tabBrand New$12.99+$6.40 delivery
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- Columbia Boys Omni-shade T-Shirt Sleeve Rashguard Red Size XXS (4/5) 00258Opens in a new window or tabNew (Other)$22.49Was: $24.9910% offor Best Offer+$5.00 deliveryFree returnsTop Rated Plus
- Cat & Jack pink yellow pizza swim trunks liner cut out size XS 4/5Opens in a new window or tabPre-Owned$15.00or Best Offer+$6.55 delivery
- Disney Cars Boys Swim Trunks Lightning McQueen Swim Shorts Pixar Size XS 4/5 NWTOpens in a new window or tabBrand New$19.99or Best Offer+$6.20 delivery
- Cat & Jack Swim Trunks Boys Size XS 4-5 Stripe Lined BlueOpens in a new window or tabPre-Owned$3.76Was: $5.7935% offor Best Offer+$5.85 deliveryFree returnsTop Rated Plus
- 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
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- REI Co-op Yellow Swim Shorts size X-Small (6-7)Opens in a new window or tabPre-Owned$18.00Buy It Now+$4.52 delivery
- Mario Kart Mario & Luigi Swim Trunks Boy's XS (4 - 5)Opens in a new window or tabPre-Owned$11.00or Best Offer+$4.33 delivery
- Art Class Boys' Solid Swim Trunks Black NWTOpens in a new window or tabBrand New$9.99Buy It Now+$4.84 delivery
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- NEW Lands’ End Boys Short Sleeve Rash Guard Swim Shirt, X-Small (4/5), UV 50Opens in a new window or tabBrand New$14.99Buy It Now+$6.49 delivery
- Volcom Lido Print Mod Boardshorts Boys' 29 (XL) Mens (XS) CleanwaterOpens in a new window or tabBrand New$15.99Buy It Now+$6.40 delivery
- Billabong toddler swim surf trunks Bathing Suit Size 2TOpens in a new window or tabNew (Other)$20.00or Best Offer+$5.00 delivery
- BOYS JOE BOXER SWIM TRUNKS BOARD SHORTS BLACK & Green XS 4-5Opens in a new window or tabPre-Owned$1.000 bids · Time left4d 1h+$4.84 delivery
- 🎉NEW🎉 Boys Size XS (6-7) Nike Ticker Tape Volley Swim TrunksOpens in a new window or tabBrand New$22.99or Best Offer+$4.84 delivery
- Abercrombie & Fitch Board Shorts Youth Boys Extra Small Striped Black BeachOpens in a new window or tabPre-Owned$16.80Was: $19.7715% offor Best Offer+$7.45 deliveryFree returns
- Member's Mark Boy's 4-Way Stretch Quick Dry Resort Swim Trunk Shark Galore XSOpens in a new window or tabBrand New$10.79Was: $11.9910% offBuy It NowFree delivery
- NWT *GAP* Boys SS Swim Rashguard Navy Blue Waves *size XS 4-5*Opens in a new window or tabBrand New$10.99Buy It Now+$4.51 delivery
- Sz 4-16 Boys Baby Yoda Swim Trunks Shorts Swimsuit Star Wars Mandalorian GroguOpens in a new window or tabBrand New$24.50 to $26.50Buy It Now+$4.95 delivery
- Brand NEW Spider-Man Boys Rash Guard with Short Sleeves Size XS/XCH 4/5Opens in a new window or tabBrand New$5.000 bids · Time left2d 12h+$3.43 delivery
- Star Wars Youth Boys X-Small Swim Rash Guard Bathing Suit Top 1/2 Sleeve T ShirtOpens in a new window or tabNew (Other)$10.00or Best Offer+$5.00 delivery
- Boys' 7pk surf' Briefs - Cat & Jack Orange - Size XS (4-5)Opens in a new window or tabBrand New$9.00Buy It NowFree delivery
- Star Wars The Mandalorian Boys' Baby Yoda Swim Short Size XS(4-5)/ NewOpens in a new window or tabBrand New$7.00Was: $10.0030% offBuy It Now+$5.24 deliveryExtra 10% off with coupon
- Op Boys Swim Trunks Green Camouflage Board Shorts Mesh Pockets 4-5 XSOpens in a new window or tabPre-Owned$5.07or Best Offer+$4.65 deliveryFree returnsExtra 20% off with coupon
- Boys' Solid Swim Trunks - art class Light Blue XS 4/5Opens in a new window or tabBrand New$8.50Was: $10.0015% offor Best Offer+$3.89 deliveryFree returnsTop Rated Plus
- Southern Tide Boys Small 4-5 XS Coral Orange Elastic Waist Swim Trunk ShortsOpens in a new window or tabBrand New$18.00or Best Offer+$7.95 delivery
- Boys' Ombre Zebra Striped Swim Shorts - art classâ„¢ Blue NWTOpens in a new window or tabBrand New$9.99Buy It Now+$4.84 delivery
- Nike Swim Jammer Shorts Boys Youth Techno Camo Swimwear Bottoms TESS0041Opens in a new window or tabBrand New$19.99Buy It NowFree deliveryFree returnsTop Rated Plus
- Gap Boys Swim Outfit Shirt Rashguard & Swim Trunks Shorts Blue Size XS 4/5 EUCOpens in a new window or tabPre-Owned$19.00Buy It Now+$6.00 delivery
- The Child Boys Baby Yoda Swim Trunks Swimsuit Star Wars Mandalorian Size XSOpens in a new window or tabPre-Owned$6.00or Best Offer+$5.31 delivery
- NWT Disney Store STAR WARS ADAPTIVE STORMTROOPER SWIMSUIT Boys XS BLACK WHITEOpens in a new window or tabBrand New$21.99or Best Offer+$4.84 delivery
- Hurley Boys' Rash Guard Shirt Black/Printed 4 XSOpens in a new window or tabBrand New$12.00Buy It NowFree delivery
- Osprey Wetsuit OSX Series Youth XS Full Length Long Sleeve Size Junior BlackOpens in a new window or tabPre-Owned$28.00or Best Offer+$9.00 delivery
- Art Class Boys Swim Trunks Neon Green Swimsuit Shorts Elastic Waist XS(4/5)Opens in a new window or tabNew (Other)$10.00or Best Offer+$6.55 deliveryFree returnsTop Rated Plus
- Boys 6-piece Summer/Swim Bundle Blue/Green (size XS 4-5)Opens in a new window or tabPre-Owned$25.00or Best Offer+$10.52 delivery
- Boys Swim Old Navy XS (5)Opens in a new window or tabPre-Owned$5.000 bids · Time left2d 2h+$4.84 delivery
- Cars 3 ~ Disney/Pixar Characters Little Boys Swim Shorts Size XS 4/5Opens in a new window or tabPre-Owned$12.95Buy It Now+$4.00 deliveryFree returnsTop Rated Plus
- BOYS CAT & JACK LONG SLEEVE SWIM SHIRT XS(4/5)Opens in a new window or tabPre-Owned$0.990 bids · Time left1dor Best Offer+$5.95 delivery
- Sonic The Hedgehog Swim Trunks Boys Size XS 4/5Opens in a new window or tabPre-Owned$5.59Was: $6.9920% offor Best Offer+$4.84 delivery
- Cat & Jack XS/S White Cover Up Sweatshirt Long Sleeve Hoodie Swim Terry ClothOpens in a new window or tabBrand New$9.32Was: $9.815% offor Best OfferFree deliverySave up to 25% when you buy more
- 2x STAR WARS Boy's XS 4/5 Blue Swim Suits/Trunks/Board Shorts Yoda Grogu VaderOpens in a new window or tabPre-Owned$5.00or Best Offer+$8.95 delivery in 2-4 days
- Boys Minecraft Swimsuit Swim Trunks Rash Guard Set Shorts Shirt Creeper 4 5 6 7Opens in a new window or tabBrand New$29.05Was: $30.906% offBuy It Now+$4.95 delivery
- Boys Pirate Hooded Beach Pool Bath Cover Up Robe Size XS 3/4 STEVE SWIMOpens in a new window or tabPre-Owned$9.99or Best Offer+$6.99 delivery
- Lilly Pulitzer boys swim trunks XS in celestial seas starfish printOpens in a new window or tabPre-Owned$33.77Buy It Now+$4.84 delivery
- NEW Speedo Swim Trunks blue boys sz XS 6/7 sunblocking, water repellantOpens in a new window or tabBrand New$9.95Buy It Now+$5.00 deliverySave up to 20% when you buy more
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- Lilly Pulitzer Toddler Boys Swim Shorts New XSOpens in a new window or tabBrand New$40.00or Best Offer+$4.84 delivery
- LOT BOYS XS 3/4 ST. EVE SWIM SHARK HOODIE ROBE 4T BUCKET HAT & NEW ARM FLOATIESOpens in a new window or tabPre-Owned$19.95Buy It Now+$11.40 delivery
- Rokka&Rolla Boy‘s Compression Liner Swim Trunks Quick Dry Bathing SuitOpens in a new window or tabBrand New$29.99Was: $42.8430% offBuy It NowFree deliveryFree returnsTop Rated Plus
- Rokka&Rolla Boys Swim Trunk Mesh Lined Bathing Suit UPF50+Quick Dry Beach ShortsOpens in a new window or tabBrand New$25.50Was: $36.4330% offBuy It NowFree deliveryFree returnsTop Rated Plus
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