926 results
- Vilebrequin Swim Trunks Youth/Boys Seafoam/ Purple Print/Lined/ Drawstring Sz/12Opens in a new window or tabPre-Owned$15.99or Best Offer+$6.34 delivery
- Kith Kids Boys Floral Print Drawstring Waist Swim Trunks Blue Size 12Opens in a new window or tabNew (Other)$44.99or Best Offer+$4.95 delivery
- Boys Speedo Blue Jammers Swimsuit 12Opens in a new window or tabPre-Owned$18.90Was: $27.0030% offor Best Offer+$5.10 delivery
- Boys Swimsuits Mock Neck Swimwear Two Piece Bathing Suits Training Swim TopOpens in a new window or tabNew (Other)$9.97 to $17.95Was: $18.895% offBuy It NowFree delivery
- New Sz27 12/14 Quicksilver Surfsilk Straight 17" Surfing Swim BoardshortsOpens in a new window or tabBrand New$24.00or Best Offer+$6.55 delivery
- Size 12 Youth Crewcuts by jcrew boys navy blue, blue and green Fish swim trunksOpens in a new window or tabPre-Owned$12.95or Best Offer+$6.55 delivery
- Boy’s Lined Swim Trunks Board Shorts Size 12 Surf Board Tropical Breeze OshKoshOpens in a new window or tabPre-Owned$5.95Buy It Now+$4.84 delivery
- Lands End Youth 2-piece swim set Shorts and hoodie Boys size M 10/12Opens in a new window or tabBrand New$18.89Was: $20.9910% offor Best OfferFree delivery
Picked For You
Top selling items from trusted sellers | Sponsored- Kids Boys T-shirt And Shorts Vacation Swimsuit Surfing Swimwear Holiday PoolOpens in a new window or tab$25.55centralflash1 (2,526) 98.4%
- Boys Bathing Suit Hot Spring Swimwear Color Block Patchwork Swimsuit One PieceOpens in a new window or tab$18.53etherbuy88 (64,958) 98.3%
- Boys Swimwear Rash Guard Swimsuit One Piece Bathing Suit Surfing BeachwearOpens in a new window or tab$23.08centralflash1 (2,526) 98.4%
- Kids Boys Top With Shorts Tankini Shirt And Bottoms Hat Sports Swimsuit ModestOpens in a new window or tab$23.74centralflash1 (2,526) 98.4%
- Boy Jumpsuit Long Sleeve Bodysuit Pool Swimsuit Surfing Uniform Rash GuardOpens in a new window or tab$21.80etherbuy88 (64,958) 98.3%
- Boys Swimsuit Long Sleeve Bathing Suit Diving Swimwear Comfortable BodysuitOpens in a new window or tab$21.58clearcalling104 (2,241) 99.5%
- Boys Swimwear Swimming Swimsuit Rash Guard Bathing Suit Athletic Diving SuitOpens in a new window or tab$22.83acc_eshop (88,947) 98.4%
- Volcom Youth Boy’s Blue/Black Graphic Print Boardshorts Size 12Opens in a new window or tabBrand New$28.00or Best Offer+$6.55 delivery
- Boy's Youth Hurley Board Shorts SwimOpens in a new window or tabBrand New$19.99Buy It NowFree delivery in 2-4 daysFree returnsSave up to 10% when you buy moreTop Rated Plus
- Crewcuts Boys Beach Trunks Starfish Print Blue Sz 12 NWTOpens in a new window or tabBrand New$20.00or Best Offer+$4.84 delivery
- Patagonia $49 Kids Baggies Nylon Shorts 7" Lined Vessel Blue Size L(12)Opens in a new window or tabBrand New$44.00or Best Offer+$5.89 deliveryExtra 23% off
- Original Penguin Swim Shorts Boys UPF 50 NEW with Tags Blue Multi Waves Size 12Opens in a new window or tabBrand New$8.00or Best Offer+$5.00 delivery
- Kids Boys Swimwear Summer Rash Guard Outfits Swimsuit Diving Beachwear PartyOpens in a new window or tabNew (Other)$10.92 to $23.57Buy It NowFree deliveryfrom China
- Boys J. Crew Swimwear 12 Original Sailboats Pockets Mesh ExcellentOpens in a new window or tabPre-Owned$12.00or Best Offer+$6.30 delivery
- NWT, Boy Swimming Trunks Set of 2, Size Boy 10 And 12/14Opens in a new window or tabBrand New$18.99Buy It Now+$8.52 delivery
- Boys NWT Abercrombie LOT of 2 Swim Trunks Swimtrunks Red Blue & Navy sz 11/12Opens in a new window or tabBrand New$20.00Buy It Now+$5.95 delivery
- NWT JOHNNIE-O $55 BOYS CARVE HALF ELASTIC SWIM SHORTS TRUNKS IN MARLIN SZ 12Opens in a new window or tabBrand New$19.99Buy It Now+$5.95 deliveryFree returnsLast oneTop Rated Plus
- New Art Class Boys Size 12 Adjustable Waist Webbed Pockets UPF 50+ Swim ShortsOpens in a new window or tabBrand New$15.00or Best OfferFree delivery
- Psycho Bunny Boys Navy Blue Swim Shorts Size 10/12Opens in a new window or tabPre-Owned$15.99or Best Offer+$4.52 delivery
From our popular brands
Based on number of views and purchases | Sponsored- VilebrequinVilebrequin Swim Trunks Youth/Boys Seafoam/ Purple Print/Lined/ Drawstring Sz/12Opens in a new window or tabPre-Owned$15.99+$6.34 delivery
- SpeedoBoys Speedo Blue Jammers Swimsuit 12Opens in a new window or tabPre-Owned$18.90+$5.10 delivery
- PatagoniaPatagonia $49 Kids Baggies Nylon Shorts 7" Lined Vessel Blue Size L(12)Opens in a new window or tabBrand New$44.00+$5.89 deliveryExtra 23% off
- HurleyHurley Boys Board Shorts Youth Inseam 10" Midnight Navy 986773-U90 NewOpens in a new window or tabBrand New$19.99+$6.95 delivery
- HurleyHurley Floral Printed Board Shorts Boys 12/26 Midnight Navy Pocket Elastic WaistOpens in a new window or tabBrand New$22.00Free deliverySave up to 20% when you buy more
- QuiksilverSize 12 yrs old Quicksilver Swim shorts for kidsOpens in a new window or tabPre-Owned$8.00+$4.52 delivery
- PatagoniaPatagonia Boys Size 12 Nylon Swim Trunk Blue Striped Board Shorts 26x9Opens in a new window or tabPre-Owned$11.20+$8.55 delivery
- GapGAP Surf Kids Board Swim Shorts Boy XL (12) Reg Navy & Red Striped Very Nice EUCOpens in a new window or tabPre-Owned$11.99+$6.00 delivery
- Gymboree Sz 12 Boys' Swim Suit Board Shorts Blue With Liner Pirate ShipOpens in a new window or tabPre-Owned$4.990 bids · Time left23h 57m$9.99Buy It Now+$6.40 deliveryFree returnsTop Rated Plus
- Patagonia Baggies (Lot of 2) Boy Med 10 Swim Short Lined Trunks Size L (12)Opens in a new window or tabPre-Owned$39.95or Best Offer+$5.95 delivery
- NWOT HANNA ANDERSSON SUNBLOCK SURF TIDEPOOL S/S SWIM RASH GUARD 150 12 $40Opens in a new window or tabNew (Other)$28.99Buy It Now+$6.20 delivery in 2-4 days
- NWT Banana Boat Boy's 2 Piece Rashguard And Swim Trunks Size 12Opens in a new window or tabBrand New$12.50Buy It Now+$5.50 delivery
- EUC Gymboree Boys 12 Flag Stars Stripes Red White Blue Swim Board Shorts TrunksOpens in a new window or tabPre-Owned$17.99or Best Offer+$6.55 delivery
- Boy Sunsuit Tropical Swimsuit UPF 50+ Shirts With Boardshorts Seaside Sets SwimOpens in a new window or tabNew (Other)$11.52 to $31.52Was: $32.697% offBuy It NowFree deliveryfrom China
- TYR Boys Durafast Hexa Blade Racer Brief Swimsuit Navy and Red sz 28 *NEW*Opens in a new window or tabBrand New$23.99or Best OfferFree deliverySave up to 20% when you buy more
- Vineyard Vines Blue & Pink Striped Swim Trunks Youth Boys Size 12-14Opens in a new window or tabPre-Owned$24.00or Best Offer+$4.84 delivery
- Gap Kids Boardshort Swimsuit Polyester Light Blue XL (12) Pre-ownedOpens in a new window or tabPre-Owned$14.89or Best OfferFree deliveryFree returns
- 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
- art class boys swim trunks Size 12Opens in a new window or tabBrand New$12.99Buy It Now+$6.55 delivery
- Kids Boys T-shirt And Shorts Vacation Swimsuit Surfing Swimwear Holiday PoolOpens in a new window or tabNew (Other)$12.34 to $25.55Was: $26.895% offBuy It NowFree deliveryfrom China
- Hanna Andersson Rash Guard Boys Size 150 /12Opens in a new window or tabPre-Owned$14.00Buy It Now+$4.75 delivery
- Hurley Floral Printed Board Shorts Boys 12/26 Midnight NavyOpens in a new window or tabBrand New$19.95Buy It NowFree deliveryFree returnsSave up to 20% when you buy moreTop Rated Plus
- GAP Surf Kids Board Swim Shorts Boy XL (12) Reg Navy & Red Striped Very Nice EUCOpens in a new window or tabPre-Owned$11.99or Best Offer+$6.00 delivery in 2-3 daysFree returnsTop Rated Plus
- Orlebar Brown Setter Eldora Swim Shorts Age 12 Blue PrintedOpens in a new window or tabPre-Owned$75.00or Best Offer+$6.99 delivery
- NWT JOHNNIE-O $55 BOYS TRELLIS HALF ELASTIC SWIM SHORTS TRUNKS IN MARLIN SZ 12Opens in a new window or tabBrand New$19.99Buy It Now+$5.95 deliveryFree returnsTop Rated Plus
- Mini Boden Sea Life Pirate Ship Board Swim Shorts 12 EUC B1784Opens in a new window or tabPre-Owned$20.00Buy It Now+$5.15 deliveryFree returns
- Kids Boys Beachwear 2 Pieces Rash Guard Wetsuit Swimsuit Athletic Swimwear SetsOpens in a new window or tabNew (Other)$10.32 to $19.46Was: $20.747% offBuy It NowFree deliveryfrom China
- Hurley Boys Board Shorts Youth Inseam 10" Midnight Navy 986773-U90 NewOpens in a new window or tabBrand New$19.99Buy It Now+$6.95 delivery in 2-4 days
- Tea Collection Boy's Long Sleeve Whale Blue Ivory Striped Swim Rash Guard Sz 12Opens in a new window or tabNew (Other)$21.59Was: $23.9910% offBuy It Now+$6.95 delivery in 2-4 days
- Patagonia boys swim trunks navy inner drawstring size 12Opens in a new window or tabPre-Owned$5.000 bids · Time left5d 12h+$5.50 delivery
- NWT Laguna Youth Boy's Reflections Swim Trunk Sz 10/12Opens in a new window or tabBrand New$19.99Buy It Now+$6.40 delivery
- Boys Nike Brand Swim Shorts / Trunks Size Youth Large [ 12 to 13 Years ]Opens in a new window or tabPre-Owned$6.75Buy It Now+$4.84 delivery
- Patagonia Shorts kids Boys 12 Blue Swim Board Shorts Trunk Pool RecycleOpens in a new window or tabPre-Owned$19.99or Best Offer+$7.99 deliveryExtra 5% off with coupon
- Boys Blue White Elasti Waist Drawstring Psycho Bunny Swim Trunks Size 10/12Opens in a new window or tabPre-Owned$18.95or Best Offer+$4.84 delivery
- NWOT BOYS BLUE WITH SHARKS ON SURFBOARDS BY WONDER NATION SIZE 10/12Opens in a new window or tabNew (Other)$5.00Buy It Now+$5.00 delivery
- Used Orlebar Brown Blue, And White Geometric Swim Shorts for Boys Size 12Opens in a new window or tabPre-Owned$60.00or Best OfferFree delivery
- Crewcuts BOY Blue White Stripe Seersucker Swim Trunks Suit NEW Sz 6 7 8 10 12Opens in a new window or tabBrand New$17.99Buy It Now+$8.71 delivery
- Hurley Boardshorts for Boys Size 12 (26 Waist) Blue with Shark Print Swim ShortsOpens in a new window or tabBrand New$24.99Buy It Now+$5.95 delivery
- CABANA LIFE Big Boy's 12 Charleston Stripe Swim Trunks NWTOpens in a new window or tabBrand New$22.99Buy It Now+$6.55 delivery
- NEW Spyder Youth 2 piece Long Sleeve Blue Swim Set UPF 30+ Protection MED 10/12Opens in a new window or tabBrand New$13.50Buy It NowFree delivery
- NEW Hurley sz 12 solid heather blue boys swim board shorts swimsuitOpens in a new window or tabBrand New$18.88Buy It Now+$5.00 delivery
- Hanna Anderson Unisex Aqua Blue Short Sleeve Rash Guard Top Size 150 (Size 12)Opens in a new window or tabNew (Other)$16.35or Best Offer+$6.95 delivery
- NWT BOYS size 11-12 BLUE MOONLIT SKY Quick Dry SWIM TRUNKSOpens in a new window or tabBrand New$17.00Buy It NowFree delivery
- HANNA ANDERSSON-Boy’s Swim Suit-Sz. (U.S. 12)-150CM-Blue-Shark/Seals-Mesh LinerOpens in a new window or tabPre-Owned$8.990 bids · Time left1d 16h$11.70Buy It Now+$4.50 delivery
- Boys Abercrombie Swim Trunks NWT Size 11/12 Blue SharksOpens in a new window or tabBrand New$16.00or Best Offer+$4.84 delivery
- Beach Bros Swimwear Boys 12 Blue Trunks Quick Dry Draw String NewOpens in a new window or tabBrand New$9.92Was: $16.5340% offor Best Offer+$6.55 delivery
- Hanna Andersson Rash Guard Boys Sz. US 12 Shark Sun WaveOpens in a new window or tabPre-Owned$7.00Buy It Now+$4.84 delivery
- Boy's Hurley Board Shorts Size 12/26 Surf Beach Swim Trunks Teal Blue BlackOpens in a new window or tabPre-Owned$10.75Buy It NowFree delivery
- Speedo Boy’s Swimsuit Jammer, Sz 12, Navy Blue, NWOTOpens in a new window or tabNew (Other)$12.95Buy It NowFree deliveryFree returns
- Tommy Bahama Blue Short Sleeve UPF/FPS 50 T-Shirt Boys SIZE L 10/12Opens in a new window or tabBrand New$22.41Was: $24.9010% offor Best OfferFree delivery
- Boy's Hanna Anderson Gap Swim Trunks Board Shorts Rash Guard Star Wars Red Sz 12Opens in a new window or tabPre-Owned$22.00or Best Offer+$6.50 delivery
- NWOT Patagonia Clean Currents Tide-pool Blue Swim Trunks Kids L/12Opens in a new window or tabNew (Other)$24.95or Best Offer+$5.95 delivery in 2-4 days
- Boy Jumpsuit Long Sleeve Bodysuit Pool Swimsuit Surfing Uniform Rash GuardOpens in a new window or tabNew (Other)$12.64 to $22.47Buy It NowFree deliveryfrom China
- Well Dressed Wolf Wildling NWT 11-12 Swim Shorts Trunks Indigo Stars LA1-67Opens in a new window or tabBrand New$19.99Was: $24.9920% offor Best Offer+$4.84 delivery
- NWT Abercrombie Kids White rashguard with Navy Logo size 11/12Opens in a new window or tabBrand New$20.00or Best Offer+$8.00 delivery
- Lands End Boys Swimsuit Set Medium Sizes 10 To 12 Opens in a new window or tabPre-Owned$10.00or Best Offer+$8.19 delivery
- Hurley Youth Blue Toucan Print Board Swim Shorts Boys Size 12 NWTOpens in a new window or tabBrand New$6.99Buy It Now+$6.20 delivery
- Hanna Andersson Shark Print Boy's Swim Trunks Size HA 150/US 12Opens in a new window or tabPre-Owned$20.00or Best Offer+$6.99 delivery$10 off $50+ with coupon
- NEW Boy's Art Class Blue Green Swim Trunks Sz 12Opens in a new window or tabBrand New$20.27Was: $23.8515% offor Best OfferFree deliveryFree returnsTop Rated Plus
- Kids Boys Swimsuit Vacation Top With Bottoms Quick Dry Swimwear Sport SurfingOpens in a new window or tabNew (Other)$12.08 to $25.01Was: $26.897% offBuy It NowFree deliveryfrom China
- Crewcuts Boys Swim Trunks Sz 12 NWTOpens in a new window or tabBrand New$15.000 bids · Time left2d 22h$19.99Buy It Now+$4.99 delivery
- Boys Bathing Suit Hot Spring Swimwear Color Block Patchwork Swimsuit One PieceOpens in a new window or tabNew (Other)$12.46 to $18.53Buy It NowFree deliveryfrom China
- Kids Boys Suit Swimwear Swimsuit Short Sleeve Set Tops Tracksuit BeachwearOpens in a new window or tabNew (Other)$15.45 to $20.18Was: $20.758% offBuy It NowFree deliveryfrom China
- Items Per Page
![Boys Nike Brand Swim Shorts / Trunks Size Youth Large [ 12 to 13 Years ]](https://i.ebayimg.com/images/g/GHAAAeSwaGRnyb-K/s-l140.jpg)
