Top 10 Best 4t swimsuit boys in 2026

Last Updated - 7/2/2026

🏆Best Choice

Simple Joys by Carter's

Simple Joys by Carter's Toddler Boys 2-piece Swimsuit Trunk and Rashguard, Blue Whales, 4T

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•2-Piece Swim Set: Includes a rashguard top and matching swim bottoms, providing a complete and coordinated beach or pool outfit for easy styling.
•Versatile Sleeve Options: Available in both long and short sleeve options, giving flexibility to match different weather conditions and levels of sun protection.
•Fun Prints and Vibrant Colors: Features a variety of playful patterns and bright colors to keep your child looking stylish and excited to wear, perfect for summer vibes.
•Tagless Design: The tagless interior ensures a soft, irritation-free experience, keeping your child comfortable for hours of fun.
•UPF 50 Protection: Crafted with built-in UPF 50+ protection, helping shield sensitive skin from harmful UV rays, so they stay safe and comfortable outdoors.
•Quick-Dry Fabric: Made from lightweight, quick-drying materials to keep kids comfortable in and out of the water and reduce chill.
•Durable and Fade-Resistant: Designed to withstand sun, sand, and chlorine exposure, with high-quality materials that maintain their vibrant look and shape over time.
•OEKO-TEX Certified: Made from materials that meet the OEKO-TEX Standard 100, ensuring they are safe for delicate skin.

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$18.69

$21.00

-11%

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maamgic

maamgic Boys Swim Trunks Toddler Swim Shorts Little Boys Bathing Suit Swimsuit Toddler Boy Swimwear,Palmpineapple Pink,4 T

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Comfortable: Made of 100% polyester, UPF 50+ which blocks 90% of the sun's harmful ultraviolet rays. The smooth polyester fabric is lightweight, comfortable and quick dry. The silky smooth mesh lining offers all the extra support your boys need during any activity at the beach, pool, or if they are just lounging around. Your boys can spend an entire day wearing these cute shorts.
•Good quality: This boys swim trunk features an elastic waistband with drawstring closure which is extremely comfortable. Made of comfortable quick dry fabric, your boy could easily feel how great it is when they wear these swim trunks.
•Occasion: These boys boardshorts are suitable to wear anywhere such as for walking, running, swimming, surfing, playing, drifting, in the beach or lounging at home etc.
•Style: The fashion style will be on full display with this cool and comfortably fit boy's swim trunks with tropical inspired prints. This playful wrinkle free shorts are short and above the knee, they will make your style come alive with its unique patterns. 2t swim trunks, 3t swim trunks, 4t swim trunks, 5t swim trunks, 6t swim trunks are available for you.
•Our brand "MaaMgic" is always focus on providing the most fashionable and comfortable swimming trunks to our customers. For the boys, we have cute fish bone swim trunks, short pineapple swim trunks, flamingo swim trunks, dinosaur swim trunks etc. These swim trunks could be a perfect gift to your boys, sons or grandsons. Please do not hesitate to contact us if you have any question.

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$18.99

$27.99

-32%

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maamgic

maamgic Boys Swim Trunks with Compression Liner Toddler Boy Swimsuit Quick Dry 4-Way Stretch Swimming Trunks Fish Baby Blue 4T

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•【Compression Liner】:Different with mesh liner, boys swim trunks with boxer brief liner can give all-day support and good wrapping for legs. No need to worry about the problem of chafing and sand. The hygiene and safety levels of boys have greatly improved
•【Quick Dry】:With quick dry function, boys can easily transition from swimming to playing on the sand without feeling uncomfortable. It's lightweight and breathable, ensuring optimal comfort even in hot weather. Also, it is convenient for parents, as they can be easily washed and dried for the next beach adventure
•【Elastic Waistband】:Boys swim shorts feature elastic waistband and adjustable drawstring, adds to the comfort level and makes it easy to get the perfect fit. These swimming trunks have two side pockets with mesh interior and one back pocket with nicely embroidered drainage hole to let water out
•【Stretch Enough】:Made of 90% polyester and 10% spandex, the fabric is not only skin-friendly, lightweight, and quick-dry, but the 4-way stretch fabric can also adapt to various large movements and play of children. Allowing boys' adorable nature to be fully unleashed
•【Multi Occasions】:Boys beach shorts have bright colors, easy to find in the sea or beach. And also designed fade-resistant and easy to carry, making them perfect for various occasions. Whether it’s a day at the beach, a pool party, or playing in the backyard, they are a must-have for kids

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$25.99

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Gerber

Gerber Baby Boys Baby Toddler Long Sleeved Rashguard Swim Bathing Suit Set Blue Sailboat 4T

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•UPF 50+ fabric to protect against harmful rays
•Fast-drying material to protect against rashes from water play
•Great set for sibling matching with coordinating one piece rashguard
•Set includes: long sleeve rash guard and swim trunks
•Blue and white raglan rashguard with screenprint art and blue swim trunks with lighthouses printed all-over

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$24.95

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Sylfairy

Sylfairy Boys Two Piece Rash Guard Swimsuits Kids Long Sleeve Sunsuit Swimwear Sets Bathing Suit (US, Age, 4 Years, 5 Years, Yellow Dinosaur)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•1. Adorable design: This Swimsuit has a vivid shark/dinosaur shape printed design, and made of 80% Nylon 20% Spandex, more smoothly and comfortable, your kids will be the focus between all the children with it.
•2. Easy on/off: The 4 way stretch fabrics are easy to put on or take off, this swimming suits with flatlock stitching for superior quality with soft added more comfort, quick drying.
•3. Sun protection: Baby Boys UV protective swimsuit with long sleeve,20D Nylon fabrics anre rated UPF 50+ and provide maximum UV sun protection by blocking 98% of UVA + UVB sun rays, wet or dry; similar rating as SPF for sunscreens.Take care of your child's health.
•4. Stylish Swimsuit for Boys: The Long sleeve bathing suit rashgurad swimwear with full-length long sleeves,designed with high collar for optimal sun protection.
•5. Package included two piece boys rash guard swim suit.

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$14.98

$15.99

-6%

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The Children's Place

The Children's Place,And Toddler Boys Short Sleeve Rashguard Swimsuit,Baby-Boys,Blood Orange,4T

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•SWIMSUIT — The cutest swimsuit for beach days or hanging by the pool.
•FABRIC — Rashguard made of 86% recycled polyester/14% spandex jersey. Swim trunks made of 100% recycled polyester twill; lining made of 100% polyester mesh. UPF 50+ (the highest possible rating) blocks 98% of harmful rays!
•RASHGUARD — Features short sleeves, crew neck and graphic design at front
•SWIM TRUNKS — Features pull-on elasticized waistband with functional drawstring, side vents at hem and allover print
•THE CHILDREN'S PLACE — We offer a huge selection of kid's clothing! Shop us for jeans, shorts, leggings, chinos, polo shirts, dresses, pajamas, and accessories.

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$20.97

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Hurley

Swim Suit 2-Piece Outfit Set

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•SUN PROTECTION: The top has a UPF 50+ finish to help protect your child's skin from the sun's harmful UV rays. Apply sunscreen to parts of your little one's skin not covered by the top to help keep them protected from UV rays.
•QUICK-DRYING: H2O-DRI technology wicks away moisture and is quick drying for when your child is done splashing around.
•4-WAY STRETCH: The shorts are woven with added stretch for ease of movement.
•COMFORT THAT LASTS: The top has a tagless crewneck for fuss-free wear and the shorts have a stretch waistband with a drawcord for a comfy fit.

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$29.05

$34.99

-17%

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Volcom

Volcom Baby Boys Swim Set - 2 Piece Short Sleeve Swim Shirt Graphic Tees & Board Shorts - Infant Toddler Little Boys Swimsuit, Size 4T, Sea Spray

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Complete Boys Swim Set With Matching Pieces: This 2-piece boys swim set includes a soft graphic tee and board shorts, perfect for warm-weather fun. Whether you’re looking for a swim set boys style, a comfortable boys swim shirt and shorts, or a boys two piece swimsuit, this outfit has it all for beach, pool, and playtime ease.
•Quick-Dry Swim Shorts For All-Day Comfort: These boys swim trunks are crafted from high-quality, fast-drying material that holds up through cannonballs and sandcastles. Ideal for those searching for a 5t boys swimsuit, boys swim suits 6-7, or a durable boys bathing suit with rash guard, this set delivers performance and flexibility.
•Soft Graphic Tee Designed For Active Play: The included swim shirt brings beachy flair with breathable comfort, making it ideal for any swim outfit for boys. Great for pairing with boys 5t swim trunks and shirt, boys swim suit size 6, or a full little boys swim set, it’s made to move, stretch, and explore.
•Adjustable Waistband For Easy Fit: Featuring an elastic waistband with drawstring, these boys swim shorts adjust for a secure fit during any summer activity. Whether it’s a 5t boy swimsuit, swimsuit for kids boys, or swim clothes for boys 6-7, this combo is built for growing kids who never stop moving.
•Ideal Swimwear Set For Water Adventures: Designed for comfort and style, this boys swim set transitions easily from the pool to the boardwalk. Parents looking for boys swim sets, boys rash guard swim set, or swimsuits for children boys will love the versatility, durability, and bold Volcom vibe.

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$22.99

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WAWSAM

Toddler Boy Swimsuit Two Pieces Truck Swimsuit Toddler Rash Guard and Trunk Beach Bathing Suit Quick Dry Short Sleeve Shirt Swimwear Set for Summer Surfing Holiday

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•ATTRACTIVE DESIGN: Look! The diggers are working on a beautiful beach, the construction pattern is popular among boys, the unique patterns will easily catch your child's attention, Let your little boy wear it to enjoy the swimming time!
•ELASTIC AND QUICK DRY: This toddler boy swimsuit is made of 82% polyester and 18% spandex, breathable, quick dry and more skin-friendly. High elastic spandex will make your little one comfortable in water.
•INTIMATE CARE: Breathable mesh lining. Double-needle sleeve and bottom hem - wrinkle free. Four-way stretch and shape memory. Perfect color matching, stripe trunk make your baby look like more cute.
•MULTIPLE OCCASIONS: Suitable for summer surfing, beach holiday, pool, bathing, swimming training, or other water activities indoor and outdoor. Perfect for all water play entertainment. An ideal gift for your little ones.
•SIZE MEASUREMENT: 4-5 T---Chest: 24.2’’, Sleeve: 8.1’’; length: 16.9’’. Due to manual measurement, please allow slight difference of 0.4’’- 0.8’’.

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$9.99

$12.99

-23%

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Nickelodeon

Nickelodeon Paw Patrol Boys Rash Guard Set - 2 Piece Chase Marshall TMNT UPF50 Swim Shirt & Swim Trunks for Toddler & Big Kid, Size 4T, White/Yellow/Navy

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Officially Licensed Paw Patrol & TMNT Boys Swim Set Featuring Chase, Marshall, Rubble, and Teenage Mutant Ninja Turtles: This boys swimsuit set showcases vibrant, officially licensed graphics of Paw Patrol heroes and Teenage Mutant Ninja Turtles, bringing fan-favorite characters like Chase, Marshall, Rubble, and the TMNT crew to life. Perfect for fans of Paw Patrol, Teenage Mutant Ninja Turtles gear, or character-themed summer fun.
•UPF 50+ Sun Protection Swim Shirt for Toddlers and Kids: The short sleeve rash guard offers sun-smart protection while repping top characters like Chase, Marshall, Rubble, and the Teenage Mutant Ninja Turtles. Whether it’s a backyard splash or beach adventure, this flexible swim shirt keeps kids cool and covered in style.
•Functional Swim Trunks for Water Play: Designed with an elastic waistband, mesh liner, and functional drawstring, these boys swim trunks support all-day water fun. Featuring prints of Paw Patrol favorites and the TMNT team, these trunks match perfectly with their Paw Patrol towel, TMNT beach gear, or character swim shoes.
•Quick Drying and Durable Materials: Made with quick-drying, lightweight fabric, this swim suit for toddler boy retains bright, action-packed prints of Paw Patrol and Teenage Mutant Ninja Turtles. Whether they’re jumping into a pool or chasing waves, this set holds up through every splash and sunny day.
•Great Fit Across Toddler and Big Kid Sizes: Available in toddler and little kid sizes, from 2T to 5T and beyond. Whether you're looking for a Paw Patrol swimwear essential or a TMNT swimsuit boys will love, this 2-piece set covers your bases with iconic characters and easy comfort.

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$24.99

$34.99

-29%

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