548 results
- Gap Kids Boys Size XSmall 4/5 Mesh Lined Blue Brown Floral Swim Trunks ShortsOpens in a new window or tabPre-Owned$7.99Was: $9.9920% offor Best Offer+$7.99 deliveryFree returnsExtra 15% off with couponTop Rated Plus
- Minecraft swim trunk and rashguardOpens in a new window or tabPre-Owned$8.00or Best Offer+$4.84 delivery
- 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
- 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
- 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
- Chubbies Kids Swimming Trunks 4T-5TOpens in a new window or tabPre-Owned$20.00or Best Offer+$4.71 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
- Gap Boys Swim Outfit Shirt Rashguard & Swim Trunks Shorts Blue Size XS 4/5 EUCOpens in a new window or tabPre-Owned$20.00Buy It Now+$6.00 delivery
Picked For You
Top selling items from trusted sellers | Sponsored- Adidas Supernova Recreational Swim Shorts Boys X-Small Ocean Blue, Deep BlueOpens in a new window or tab$29.99ezshipshp (1,375) 98.3%
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- Member's Mark Boys Kids Swim Robe Cover Up Towel S-5551G XS (4/5)Opens in a new window or tab$14.44biggybargains (31,396) 99.7%
- Columbia Unisex-Child Super Backcast Short, XS- Collegiate Navy Mid GinghamOpens in a new window or tab$12.95dealsdept (60,082) 99.8%
- Patagonia Boys Baggies Swim Shorts Trunks Size XS Mud Paint Stone BlueOpens in a new window or tabPre-Owned$25.95Buy It Now+$6.40 deliveryFree returnsTop Rated Plus
- Patagonia Boys XS Extra Small Orange Swim Trunks Bottoms Shorts SolidOpens in a new window or tabPre-Owned$17.00Buy It NowFree delivery
- Lilly Pulitzer Toddler Boys Swim Shorts New XSOpens in a new window or tabBrand New$40.00or Best Offer+$4.84 delivery
- Salt Life Boy’s Stealth Brigade Youth Boardshorts NWT Size XSMOpens in a new window or tabBrand New$21.60Was: $24.0010% offor Best Offer+$5.80 delivery
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- There Abouts Swim Trunks Size XS 6/7Opens in a new window or tabBrand New$18.00or Best Offer+$4.00 deliveryFree returnsTop Rated Plus
- 🎉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
- Sonic The Hedgehog Swim Trunks Boys Size XS 4/5Opens in a new window or tabPre-Owned$6.99or Best Offer+$4.84 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
- Boys Swim Old Navy XS (5)Opens in a new window or tabPre-Owned$5.000 bids · Time left1d 9h+$4.84 delivery
- Old Navy Boys Black Swim Trunks Size 5 (XS)Opens in a new window or tabPre-Owned$6.00Buy It Now+$4.51 delivery
- Sonic The Hedgehog Swimsuit XS Boys NewOpens in a new window or tabNew (Other)$12.60Was: $14.0010% offBuy It NowFree deliveryFree returnsTop Rated Plus
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$7.99+$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
- 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
- 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
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- SpeedoSpeedo Boys 2pk Swim Tee Short Sleeve new with tagsOpens in a new window or tabNew (Other)$15.30Free delivery
- DisneyNEW Disney Mickey Mouse Boys Board Swim Shorts Size XSOpens in a new window or tabBrand New$18.84+$24.75 delivery
- SpeedoSpeedo Endurance Swimwear Boy's XS Blue Elastic Waist Drawstring StretchOpens in a new window or tabBrand New$17.77+$8.95 delivery
- CrewcutsCrewcuts Short Sleeve Rashguard White with Dude Lettering UPF 50 Size XS NewOpens in a new window or tabBrand New$26.87+$6.89 delivery
- MarvelMarvel Black Panther Swims Shirt Boys Toddler XS UPF +50 UV Lightweight StretchOpens in a new window or tabBrand New$9.99+$5.47 delivery
- ColumbiaColumbia Unisex-Child Super Backcast Short, XS- Collegiate Navy Mid GinghamOpens in a new window or tabBrand New$12.95Free delivery
- Columbia Boys' XS 6/7 PFG Backcast Short Black Omni-Shade UPF 50 NewOpens in a new window or tabBrand New$14.99or Best Offer+$5.75 delivery
- Batman DC Comics Swim Trunks Kids Size XS Blue Black Yellow Elastic WaistOpens in a new window or tabNew (Other)$7.00Was: $10.0030% offBuy It Now+$5.70 delivery
- Boys' Short Sleeve Rash Guard Swim Shirt - art class™ XS 4/5 Set Of TwoOpens in a new window or tabPre-Owned$10.00Buy It Now+$4.84 delivery
- 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
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- FINA APPROVED YINGFA 9205 MEN'S BOY'S COMPETITION JAMMER SWIMMING TRUNK ALL SIZEOpens in a new window or tabBrand New$29.99Buy It NowFree deliveryfrom China
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- Red Shield Jiu Jitsu Short Sleeve Kids RashguardOpens in a new window or tabBrand New$14.99Buy It NowFree delivery
- Boys Tie Dye Swim Trunks Cat & Jack Turquoise Blue Size XS (4/5)Opens in a new window or tabBrand New$12.99Buy It NowFree delivery
- Kids Spiderman Swim Trunks Size XSOpens in a new window or tabPre-Owned$6.99Buy It Now+$6.55 delivery
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- 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
- 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
- Kids' Solid Zip-Up Cover Up Top - Cat & Jack Size (Xs/S 4-7)Opens in a new window or tabBrand New$9.57or Best Offer+$4.71 delivery
- J.Crew CrewCuts Boys Kids Long Sleeve Colorblock Rash Guard White Blue XSOpens in a new window or tabBrand New$19.99or Best Offer+$6.30 delivery
- Mario Kart Mario & Luigi Swim Trunks Boy's XS (4 - 5)Opens in a new window or tabPre-Owned$13.00or Best Offer+$4.33 delivery
- Boys Minecraft Swim Trunks Shorts - New With TagsOpens in a new window or tabBrand New$9.99Buy It Now+$4.84 delivery
- Nike Performance Swimwear Amp Axis Boys Jammer Size 22 Age 6-7 XS - Black/BlueOpens in a new window or tabBrand New$15.99or Best OfferFree deliveryFree returnsSave up to 20% when you buy more
- Stormtrooper Swimsuit Youth Size XS Adaptable Hook And Loop Closure UPF 50+Opens in a new window or tabBrand New$14.95or Best Offer+$5.99 delivery in 2-4 days
- Buc-ees Youth Xs Lined Polyester Shorts Swim Trunks BuceesOpens in a new window or tabPre-Owned$9.29or Best Offer+$4.84 delivery
- NEW Crewcuts Boys’ XS Blue & Ivory Kids' baseball rash guard with UPF 50+ NWTOpens in a new window or tabBrand New$24.50Was: $35.0030% offor Best Offer+$8.71 delivery
- Lands' End Boys Game Controllers Print Volley Swim Trunks Size XS Retail $34.95Opens in a new window or tabBrand New$26.25Buy It NowFree deliveryFree returnsBenefits charityTop Rated Plus
- NWT Huk Kid Youth Extra Small Mesh Volley Pursuit Hybrid Shorts Black BreathableOpens in a new window or tabBrand New$34.99Buy It NowFree delivery
- Disney Pixar Incredibles Swim Trunks Boys XS Size 2-3Opens in a new window or tabPre-Owned$5.99Buy It Now+$4.25 delivery in 2-4 daysFree returnsTop Rated Plus
- Scooby Doo Swim Goggles Blue and Yellow 2010 Warner Brothers ShatterproofOpens in a new window or tabBrand New$2.000 bids · Time left6d 6hor Best Offer+$7.85 deliveryFree returns
- Boys XS 4-5 Black Blue Orange SWIM BOARD SHORTS Check Striped Trunks SwimmingOpens in a new window or tabPre-Owned$7.75Buy It Now+$4.97 delivery in 2-4 daysFree returnsTop Rated Plus
- 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
- BOYS CAT & JACK LONG SLEEVE SWIM SHIRT XS(4/5)Opens in a new window or tabPre-Owned$0.990 bids · Time left7d 7hor Best Offer+$5.95 delivery
- 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
- Boys XS(4/5) Cat & Jack Swim Shirt, Gray, Good ConditionOpens in a new window or tabPre-Owned$4.99Buy It Now+$4.33 delivery
- BRAND NEW BOYS SIZE X-SMALL 4-5 WONDER NATION 4 WAY STRETCH SWIM TRUNKSOpens in a new window or tabBrand New$7.99Buy It NowFree delivery
- Art Class Black Rash Guard Shirt Swimsuit/Swimwear - XS 4/5 (UPF50+)Opens in a new window or tabBrand New$7.99Buy It Now+$4.72 delivery
- Cat & Jack Boys Striped Swim ShortsOpens in a new window or tabNew (Other)$10.00or Best OfferFree delivery
- NWT Boys Swimshirt Rash Guard Size XS 4/5 Cat and JackOpens in a new window or tabBrand New$7.00Buy It NowFree delivery
- Vineyard Vines Swim Shorts Size XS Men's Aqua Blue TrunkOpens in a new window or tabPre-Owned$19.99Buy It Now+$5.95 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
- Boys AFTCO SHORTS SWIM TRUNKS XS BlueOpens in a new window or tabPre-Owned$10.00or Best Offer+$4.84 delivery
- NWT PSYCHO BUNNY Kids Barker All Over Print Swim Trunk 5/6 XS Cool BlueOpens in a new window or tabBrand New$60.00or Best Offer+$6.99 delivery
- Pokémon Rash Guard Swim Shirt Boys Size Xs 5 Navy Raglan Top Short SleeveOpens in a new window or tabPre-Owned$3.24Was: $4.9935% offor Best Offer+$5.85 deliveryFree returnsTop Rated Plus
- Xersion Boys Size XS(6/7) Black Swim Trunks ShortsOpens in a new window or tabBrand New$15.00Buy It Now+$6.99 deliveryFree returns
- 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
- Psycho Bunny Lukas Hand Drawn Black Kids' Swim Trunks B0W130S1PO-BLKOpens in a new window or tabBrand New$49.99List price: $55.009% offBuy It NowFree delivery
- Boys Hurley Black Rash Guard Swim Shirt Size XS 4/5Opens in a new window or tabPre-Owned$7.99or Best Offer+$6.55 delivery
- Hurley Boys' Rash Guard Shirt Black/Printed 4 XSOpens in a new window or tabBrand New$12.00Buy It NowFree delivery
- Boys Striped Swim Trunks Cat & Jack Turquoise Blue Size XS (4/5) NWTOpens in a new window or tabBrand New$11.00or Best Offer+$5.80 delivery
- Boys Swim Shorts Blue Stripe - Cat & Jack XS 4/5Opens in a new window or tabBrand New$6.50Was: $13.0050% offor Best Offer+$3.89 deliveryFree returnsTop Rated Plus
- Speedo Endurance Swimwear Boy's XS Blue Elastic Waist Drawstring StretchOpens in a new window or tabBrand New$17.77or Best Offer+$8.95 deliveryFree returnsTop Rated Plus
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- Volcom Boys' XS Swim Trunks Floral Print Polyester Black/YellowOpens in a new window or tabPre-Owned$12.00Was: $15.0020% offor Best Offer+$7.99 deliveryFree returnsTop Rated Plus
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