Top 10 Best kids triathlon suit in 2026

Last Updated - 6/16/2026

🏆Best Choice

Dark Lightning

Dark Lightning 3/2mm Kids Wetsuit for Boys and Girls, Neoprene Thermal Swimsuit, Toddler/Junior/Youth One Piece Wet Suits for Scuba Diving,Blue/Size 10

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Dark Lightning kids wetsuits are designed in a "tight/snug fitting" with soft/ultra stretch neoprene to against cold.
•3/2 mm : 3mm torso / 2mm arms and legs, suggest for over 59°F water.
•Flatlock stitching for a water resistant closure / Back zip system - easy to put on/take off for beginner.
•Dressing Tips:
•/ [important] Please read the size chart first
•/ A proper fitting wetsuit will be challenging to put on when dry. (Pro Tip: Keeping your socks on will allow your feet to slide in much easier!)
•/ Once on, lift your arms over your head and stretch out your shoulders. This move should only be slightly restricting.
•/ You should be able to squat down and move your arms easily
•/ Contact us to exchange/refund, if there is any quality issue in 12 months

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$45.90

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TFJH E

TFJH E Girls Swimsuit Rashguard Suit UPF 50+ UV One Piece,Cyan Short 8A

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•One piece Short Sleeve swimwear with front zip design , easy to put on and take off
•Feature of TFJH E Girls Swimsuits : 4 way Stretch ,breathable,quick drying and comfortable wear, Recommended hand wash in cold water ,no bleach, hang dry in shade .
•Bathing Suits for Girls :Rated UPF 50+ ... Blocking more than 97% of the sun's harmful UV radiation
•Girls Rash Guard Swimwear Tips of Size tag may have different name between different manufacture, so we have size chart for your refer in the picture , please check it before purchasing to choose the suitable one for your girl
•Occassion: Girls One Piece Swimsuits Swimming , Fishing,Sailing,Water Park ,Summer vacations like luau, cruise, hawaiian beach;Swimming Pool,Surfing , Boating and other water Sports

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$19.99

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karrack

karrack Girls and Boys One Piece Rash Guard Swimsuit Kid Water Sport Short Swimsuits UPF 50+ Sun Protection Bathing Suits (Size 8-10Years)

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•ATTENTION: Boys swimwear sizes vary,please choose the most suitable size,If you have any questions, please contact us directly.
•SUN PROTECTION: Boys Rash guard swimsuit, Blocking more than 98% of the sun's harmful UV, protect your kids from the sunburn and UV rays.
•MATERIAL: This one-piece swimsuit is made of 82% polyester and 18% elastane, which is soft and breathable，water, sweat, friction high color fastness, No fading.No formaldehyde, no odor, no carcinogens，High elasticity, chlorine resistant fabric.
•ATTENTION TO DETAIL：Equipped with a front zipper for easy on and off, allowing for free movement and stretch without restriction; it also includes an internal anti-pinching guard to facilitate hassle-free dressing and undressing.
•VERSATILE USAGE：Suitable not only for beach vacations and everyday swimming, but also as a stylish ensemble for holiday photo shoots. Easy to hand wash, the fabric dries quickly and maintains its vibrant colors without fading, making it ideal for a wide range of aquatic activities and leisure occasions.

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$29.99

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beautyin

beautyin Boyleg Swimsuits for Girls Racerback One Piece Swimming Suits Kneeskin Racing Suit Navy/Pink

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Girls one piece swimsuits made of PROFESSIONAL SWIMSUIT FABRIC, offering a long-lasting wear and comfortable wearing experience
•Girls swimsuits size 11-16 featuring thin REMOVABLE CHEST PADS, perfectly fit your body. Size 7-10 have NO chest pads, but the swimsuit with double-layer design, completely without perspective
•RACERBACK sport swimwear with WIDE STRAPS ensure good support and shoulder flexibility while swimming
•Girls athletic swimsuits in KNEE LENGTH style with skin-friendly FULL LINING provides moderate coverage and protection
•Quick-drying kneeskin swimsuit is ideal for training, swimming, racing, surfing, snorkeling and other water sports

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$18.99

$26.99

-30%

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MIENOE

MIENOE Boys Swimsuit One Piece Kid Swimsuit Boys Water Sport Short Swimsuit UPF 50+ Sun Protection Bathing Suits Dark Blue

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•CHOOSE THE RIGHT SIZE: Please refer to our picture the size chart choose the most suitable size: (the appropriate size should be selected according to the children's actual height, measurements, weight and other data).
•SUN PROTECTION: Boys sun protective swimsuit fabrics are rated UPF 50+ and provide maximum UV sun protection by blocking 98% of UVA + UVB sun rays, wet or dry.
•DURABLE AND FLEXABLE: Excellent durable YKK brand zipper is convenient for the child to put on and take off, Highly chlorine and salt resistant fabric, low water retention and extremely quick drying, Four-way stretch and shape memory.
•READY FOR PLAY: Boys high quality one piece rash gurad swimsuit designed for all water sports like diving, swim, surfing, kayaking, or play on the beach.
•CLEANING METHOD: Hand wash in warm water around 30 degrees, don’t use laundry detergent, bleaching agent and shampoos when washing, dry in cool and ventilated places after washing.

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$28.99

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TYR

TYR Sport Boys' Solid Jammer Swim Suit,Royal,24

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Package dimension :1.6 inches x8.0 inches x4.7inches
•Package weight :4.8ounces

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$28.27

$49.99

-43%

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MY KILOMETRE

MY KILOMETRE Youth Core Triathlon Race Suit Boy Spring Competition Training Suits (Red, Medium)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•➊【Long Life Fabrics】80%polyester 20% Elastane, making it more resistant to wear. The perfect child-proof fabric.
•➋ 【MK Youth TRI MULTI DENSITY CHAMOIS for Unrestricted Comfort】This 6-mm chamois with a anti-pressure module of 90 kg/m3 is the perfect size for triathlon use and provides necessary protection to young athletes.
•➌ 【Flatlock Stitching for Chafe-free Comfort】This lightweight fabric dries quickly and provides superior breathability while its striped printed cloth on the shoulder and sides allow it to glide through water when you are swimming.
•➍【Front YKK Semi-Lock Zipper for Ventilation and One Rear Pocket for Race Essentials】Easily accessible rear pockets to hold essential hydration gels.
•➎【Elastic Leg Ending with Silicone Print】 Wide, soft and elastic leg ending with silicone print create a more comfortable fit and do a fantastic job of preventing any movement during the cycle and run.

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$46.99

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MY KILOMETRE

MY KILOMETRE Youth Core Triathlon Race Suit Boy Spring Competition Training Suits (Blue, XX-Large)

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•➊【Long Life Fabrics】80%polyester 20% Elastane, making it more resistant to wear. The perfect child-proof fabric.
•➋ 【MK Youth TRI MULTI DENSITY CHAMOIS for Unrestricted Comfort】This 6-mm chamois with a anti-pressure module of 90 kg/m3 is the perfect size for triathlon use and provides necessary protection to young athletes.
•➌ 【Flatlock Stitching for Chafe-free Comfort】This lightweight fabric dries quickly and provides superior breathability while its striped printed cloth on the shoulder and sides allow it to glide through water when you are swimming.
•➍【Front YKK Semi-Lock Zipper for Ventilation and One Rear Pocket for Race Essentials】Easily accessible rear pockets to hold essential hydration gels.
•➎【Elastic Leg Ending with Silicone Print】 Wide, soft and elastic leg ending with silicone print create a more comfortable fit and do a fantastic job of preventing any movement during the cycle and run.

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$46.99

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Cadocado

Cadocado Big Girls Solid Athletic One-Piece Swimsuits Splice Racerback Competitive Legsuit,Navy Blue,10-12 Years

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Sun Protection-The girls swimsuit's front lined ensures modest coverage and sun-protection to protect your girl's delicate skin.Quick dry and lightweight material is comfy for long-wearing
•'Hollow Out'Design-The sports swimsuits for girls has racerback and open keyhole for body bugging fit.Provide more room for girls
•Perfect Support-Wide straps athletic swimsuit is ultimate support and extra comfort, convenience for hot summer, enjoy the sport time
•Skin Friendly-The kid swimsuit with sporty, contrast side splicing, and piping design create a body-hugging athletic fit
•Sport Suit-The girls one piece swimsuit designed for all water sports like diving, scuba, paddle boarding, surfing, swim lesson, kayaking, hanging at the beach, or other indoor-outdoor activities

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$23.99

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Gogokids

Gogokids Boys Cycling Jersey Youth Bike Suit with 3D Cushion, Kids Teen Short Sleeve Bicycle Clothes, Green

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Boys Bike Jersey Cycling Clothes, Youth Teen Bike Shorts with Pockets, Bike Biking Jersey Set
•Premium Fabric: Crafted from a premium blend of 95% polyester and 5% spandex, this youth cycling jersey offers exceptional softness and stretchability, ensuring comfort and flexibility for active kids. The durable fabric maintains its shape and color even after frequent washing.
•Breathable & Moisture-Wicking: Designed with moisture-wicking fabric, this jersey quickly absorbs sweat and draws it away from the body, keeping kids dry and comfortable during outdoor activities. Its breathable material provides optimal airflow, ensuring a cool feeling even on hot days.
•Ergonomic Fit: Featuring an ergonomic, athletic one-piece design. Ideal for active kids, it ensures a snug fit without restricting motion.
•Easy Care: This cycling jersey is machine washable and dries quickly, making it easy to care for. The fabric is resistant to fading and retains its vibrant color and print, even after multiple washes, so it stays looking fresh over time.

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$19.99

$24.99

-20%

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