Best S Boys Swim Trunks in 2026

Modern fashion style and slim fit. The boardshort's length is above your knee, it'll show your charming figure and high grade at the same time.

Mens Print Swim Trunks: This Funny Pattern Bathing Suits For Men Get 6 Sizes: S/M/L/XL/XXL Fun Swim Trunks For Men.

Mens Quick Dry Swim Trunks: Our Brand Men's Bathing Suits Or Swim Trunks All Get Great Quick Dry Function. Normally Take 5 To 10 Minutes, Shorts Will Dry Already. Mens Swim Trunks With Pockets: The Board Shorts All Get Three Pockets. Two Beside And One In The Backside. The Backside Velcro Pocket With Drainage. BTW, It Is Mens Elastic Waist Swim Trunks And Also Mens Drawstring Swim Trunks.

ADORABLE DESIGN - Features the cutest prints and patterns for the perfect vacation ready look for your little guy.

COMFORTABLE FIT - The mesh lining and stretchy waistband ensures easy changing and comfort all day long.

DESIGNED IN USA—Designed by moms who believe in the beauty of quality products and superior customer service. High quality and darling design is the guiding principle behind RuggedButts.

100 percent poly comfort technology quick dry microfiber with UPF 50+ rating

Available in men's and kids sizes infants through 20

2 side pockets

UPF 50+ quick dry fabric : These boy's swim trunks made with breathable quick dry fabric with 4-way stretch and UPF 50+ which blocks 98% of the sun’s harmful ultraviolet rays

Boy's swim trunks with mesh liner: they are made of quick dry fabric with elastic waist and you could adjust your waistline freely. Arc design on leg opening gives your legs more space and comfortable feeling during the activites

Comfort: This is so much more than a pair of boys athletic swim trunks. It embodies the spirit of travel or walking for fun. The smooth polyester fabric is lightweight and comfortable. The inside of the shorts has a silky smooth mesh lining which offers all the extra support you need during any activity at the beach, pool, or if you're just lounging around. These boy shorts are known comfort so you can spend an entire day wearing these shorts

☀ RECYCLED 4-WAY STRETCHY FABRIC - Shell: 90% recycled polyester, 10% spandex.Durable swimming bottoms,light weight high-performance & water repellent for Quick-drying,with moisture-wicking features and a UPF 50+ finish to protect kids from the sun’s harmful ultraviolet rays.

☀ COMFORTABLE BOXER BRIEF LINER - Super soft smooth material for the built-in compression liner, but lining is not too tight,considering your kids need some give in the growing period.This swimming trunks will allow your boys to enjoy the beach,pool without chafing burn,comfortable & supportive.Also it's not only a bathing suit,but also a nice piece for playing,running,training,workout...

☀ FUNCTIONAL DRAWSTRING & METAL GROMMETS - These boys' swimsuits have real drawstring all around waist which can be tighten,kind elastic waistband offers a great, personal fit even for slim and husky boys,also help secure tightly when performing rigorous activities.Big boys Sizes 6-8 10-12 14-16 18-20 is a must have beachwear essential,including youth young men.

Boys Swim Trunks with UPF 50+: Lightweight, comfortable,waterproof and quick dry 4-way stretch fabric; UPF 50+ which blocks 98% of the sun’s harmful ultraviolet rays.

Boys Beach Shorts with Mesh Liner: You could adjust your waistline freely with elastic waist and drawstring. The mesh lining keeps the swim trunks from sticking to your skin when swimming and sweating.

Boys Swimsuit with Novelty Patterns: Inspired 3D prints with galaxy, smoke, cat, wolf, dinosaur, palm, flag, shark and so on. They will make your style come alive with its unique patterns.

🌵 100% polyester,soft and comfortable.

🌵 Water repellent technology dries fast and resists fading.

🌵 Elastic waistband with adjustable drawstring,convenient two sides pocket.

UPF 50+ Soft Fabric - This big boy's swim trunk is made of 100% durably comfortable polyester that kids love. Our new Sun protection fabric provides a UPF of 50+ which blocks out 98% of Sun's harmful rays.

Adjustable Waist - This boy's swim shorts comes with an adjustable waist and banded waistband. It will fit most boys from 8-20.

Three Pockets - There are 2 side pockets and one back pocket in this boy bathing swimsuits.

Features: Elastic waistband, drawstring, two side pockets.

UV Protection: The boys swim trunks is made of 100% polyester which is fast-drying, soft and breathable. It can effectively resist UV rays and protect the kids skin.

Novelty patterns: 3D printing, lifelike and never fade. You will have a variety of options in here: ferocious dinosaurs, rave cats, scary skulls, laid-back beaches, etc.

OFFICIALLY LICENSED MARVEL AVENGERs: Toddler and Boys Avengers and Spider-Man Bathing Suit Trunks, Bringing you the very best of the Marvel universe so you can become a superhero

QUICK DRY: Marvel Avengers Superhero swim trunk material wicks moisture and dries fast after fun in the water to keep boys active, fresh, and comfortable; Wear this Spider-Man bathing suit to the beach, the pool, the lake, the river, the stream, the water park, to birthday parties, and more

AVENGERS STYLE: Choose between his favorite superheroes like Spider-Man, Captain America, The Hulk, and Iron Man; swim trunks little boys that will sure to bring a smile to your little boy

Swim shorts have an elastic waist, adjustable drawstring, inner mesh lining, UV 50

Kids sizing: 4/5, 6/7, 8, 10/12, 14/16

Sizing: 4/5 (shown as 4-5 years) and 6/7 (shown as 6-7 years)

★ Quick Dry ★ 100% Polyester.This boys swim trunks with comfortable elastic waist and drawstring for adjustable.

★ Pocket ★ This boys bathing suits has 2 pockets on side for convenient storage.The good quality make this shorts extremely durable and comfortable.

★ Soft ★This boys swimming shorts with super soft mesh lining inside provide kids the max comfort.This soft mesh lining is design for child's skin.Lightweight and quick drying fabric makes these shorts very light to wear.

❤Material: The Boys' Compression Swim Trunks are made of polyester with a silky compression lining and are ultra-light, breathable, chaf-proof boxer briefs. Flat-angle lining, more comfortable than ordinary triangular mesh lining, covering private parts and preventing skin chafing.

❤ Features: Boys swim shorts are designed with the latest boxer briefs; waterproof, quick-drying, 4-way stretch polyester fabric; a elastic waistband with adjustable drawstring； double side pockets, one pocket lined in the boxer briefs， The side seam pockets adopt mesh fabric to facilitate water and sand drain quickly ，allows kids to move freely in the pool, beach, without restraint.

❤Design: kids Compression swimming trunks with the latest print design, gradient palm tree, gradient blue starry sky, gradient feather, Botanical Green, Geometry, Blue Grass, Miami teal, Bright Royal, make your child more bright in the beach , let your boy have more energy and enthusiasm.

Swim Trunks for Little Boy: Made of 92% Polyester and 8% Spandex in high quality. Well workmanship with nice fabric can blocks of the sun’s harmful ultraviolet rays. Smooth, soft, comfortable, lightweight and quickly dry.

Boys’ Swimwear: Mesh lining offers the extra support for your boy while wearing our swimming trunks. Bathing suit for toddler boy can be worn at the beach, pool, swimming lessons, or just lounging around. It must be a wonderful item for the summer holiday or beach vacation.

Boy Swimsuit: Extremely durable and breathable swim shorts for toddler boy, makes your baby boy safety and flattering while wearing. 2 Side pockets is convenient for take the must-have-item around.

This boys swim shorts are made of 90% upcycled plastic bottles,it will need about 10 upcycled plastic bottles to make one piece.We just want to protect our earth by this method.Everyone can contribute to the beauty of the earth.

It is the 1st generation innovative MILANKERR compression lined boy swim trunks.The different is we made a built in boxer underwear instead of classic mesh briefs,which is more stretch,more support.For the liner, the seam is away from the skin. It is sewn in a manner so the seam will not rub against skin - the seam is against the fabric of the outer short.

Based on the compression liner,you will fell not chafed,more support,more comfortable.This bathing suit is just like wearing underwear. It does not bunch up and doesn’t have to worry about chafing like the classic mesh liner. It holds "things" in place more comfortably and keeps them hidden away better than mesh.

Officially licensed Pokemon little boys cute and stylish swimming shorts bottoms

Featuring Charmander Ivysaur Pikachu Wartortle

Awesome sublimation print design; UPF 50+ material for UVB and UVA protection and worry-free sun time;

Material: 100% polyester, elastic at the waist, pockets on both sides, safe material, light and comfortable.

Design: The swim trunks are designed with an elastic waist and the drawstrings are tightened. Pockets on both sides for personal items such as cell phones, wallets and keys. The inside of the beach shorts has a silky smooth mesh lining. Safe, quick-drying fabric, free stretch and UPF30 + sun protection index can block harmful UV rays from the sun.

Comfort: A sleek polyester fabric that is lightweight and comfortable for boys' swim pants. You can provide the convenience and comfort you need at the beach, pool or any wandering. Quick dry beach board pants are perfect for you.

ELASTICATED WAISTBAND JURASSIC WORLD SWIMMING SHORTS FOR BOYS - Our super cool Jurassic World bathing trunks for children is the best way to splash around during holiday vacations, swimming on beach and pool days whilst staying comfortable in dinosaur style!

BATHING SHORTS AVAILABLE IN VARIETY OF SIZE - The Jurassic World Dinosaur swim shorts for kids comes in sizes; 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11, and 11-12 years offering a comfortable and regular boys fit made for ultimate comfort, perfect for beachwear!

85% POLYESTER & 15% ELASTANE T REX SWIM SHORT BOTTOMS - The Jurassic World swimwear for boys is made from mixed materials for a light and very soft feel. Perfect for your holiday suitcase, the Jurassic World pool shorts have an elasticated waistband for the perfect fit!

GREAT QUALITY: This boy's swim trunk features an elastic waistband with drawstring closure. Extremely durable and comfortable. Made with comfort technology quick dry fabric with UPF 50+ which blocks 98% of the sun’s harmful ultraviolet rays. When you wear these swim trunks for boys you can easily feel how great the quality is compared to the average swimming shorts.

COMFORT: This is so much more than a pair of boys athletic swim trunks. It embodies the spirit of travel or walking for fun. The smooth polyester fabric is lightweight and comfortable. The inside of the shorts has a silky smooth mesh lining which offers all the extra support you need during any activity at the beach, pool, or if you're just lounging around. These boy shorts are known comfort so you can spend an entire day wearing these shorts.

STYLE: Whether you get it for the comfort or for fashion your style will be on full display with this cool and comfortably fit boy's swim trunks with tropical inspired prints. You can be sure no one else will have the same or similar shorts. This unique swim trunk for boys is one of a kind. This playful wrinkle free and water resistant shorts will make your style come alive with its unique patterns.

Material --- This Boys swim trunks made of 100% polyester and 4 way stretch fabric,very smooth and comfortable for Children's body.Durable swimming shorts,light weight high-performance & water repellent for Quick-drying,with moisture-wicking features and a UPF 50+ finish to protect kids from the sun’s harmful ultraviolet rays.

Features --- Swim Trunks Boys with compression liner design. Super soft smooth material for the built-in boxer brief lining, but lining is not too tight,considering your kids need some give in the growing period.This swimming trunks will allow your boys to enjoy the beach,pool without chafing burn,comfortable & supportive.Also it's not only a bathing suit,but also a nice sports shorts for playing,running,training,workout.

Elastic waistband drawstring --- This swim shorts for boys is drawstring design and elastic waistband, No mesh,anti-chafing,which can be adjusted to fit the waist freely to prevent this boy's swimwear from slipping off . 2 large deep mesh pockets on the sides can hold various small objects, which not easy to fall. The velcro tape back pocket could automatically close the pocket without manual control, which is more convenient and safe than the manual zipper and button pocket.

OFFICIALLY LICENSED NICKELODEON PAW PATROL: Toddler and Boys' Bathing Suit Trunks, Cute and fun merchandise of everyone's favorite cartoon characters right at your fingertips; For kids and the kid in you

QUICK DRY: Nickelodeon Paw Patrol swim trunk material wicks moisture and dries fast after fun in the water to keep toddlers and boys active, fresh, and comfortable; Wear this bathing suit to the beach, the pool, the lake, the river, the stream, the water park, to birthday parties, and more

PAW PATROL STYLE: Choose between his favorite pups in the Paw Patrol Squad like Chase, Marshall, Rubble, Skye, and Zuma; Swim trunks for boys that will sure to bring a smile to your little boy and toddler

IDEAL SWIM SHORTS WITH THREE POCKETS. Our exquisite kids swimming trunks features 2 side cargo pockets and one additional pocket for essential storage and an elastic waistband ​​with drawstring closure for an extremely snug fit.The boys swim trunks with breathable mesh lining so that your little boy can wear it comfortably.The Size is suitable for toddlers, little kids, and big boys available from 2T -16 years old.

COOL AND MULTIPLE CHOICE OF DESIGN:Our adorable boys bathing suits which have 9 attractive designs:2 Camo designs ,1 Doodle Design,1 Blue Sci-Fi, 6 Stripe Designs. All these designs match perfectly with the summer "needs to swim" season. Our kids swim trunks could be a perfect gift to your boys, sons and grandsons.Kids can match it with their dad and even other family members and friends and find the same patterns during family gatherings,reunions and other celebrations.

PREMIUM QUALITY: Our swimwear for boys is made from 100% high-quality smooth polyester material, not only providing a lightweight comfortable feeling but also blocks the harmful ultraviolet rays. This Swimwear for kids has super quick dry fabric which is comfortable to wear and easy to care for and is skin-friendly which makes it a must have in your summer vacation.Our boys' swimwear pants can be machine washed and are durable.

Material: Boys Swim Trunks are made of high quality polyester and spandex, which are very soft and comfortable while not easily deformed. The quick-drying material allows your child to stay dry and comfortable soon after swimming

Design: These boys' swim trunks are designed with elastic bands and pockets, the elastic bands help to fit the skin better and are not easy to fall off, while the pockets on the left and right sides and at the back make them more suitable for everyday wear

Color&Size: Boy's swim trunks are printed with high quality patterns and can be freely chosen according to preference. 2T,3T,4T,4,5-6 sizes are currently available, please refer to the size chart for specific parameters

Made of SPF/UPF 50+ fibers, machine washable

Comfortable fit: Elastic waistband with adjustable draw string, fix these swim shorts right in place

Soft material: Use ultra soft mesh lining, your boy can wear these swim trunks for whole day without chafing issue

UPF 50+ Sun Protection

Drawstring

Machine Wash

Ourlined swim trunks are quick-drying

With an elastic waistband & drawstring, they are easy to pull on and quick tie in place

Side and back pockets

Comfortable - Our boys swim trunk is made of polyester. The smooth polyester fabric is lightweight, comfortable and quick dry

Mesh Lining Design - The silky smooth mesh lining of our swimming trunk offers all the extra support for your boys during any activities at the beach, pool, or if they are just lounging around. These boys shorts will be a necessary for summer holiday or casual

High Quality - This boy's swim shorts feature an elastic waistband with drawstring closure and two side & one back pockets for convenient storage. Your boy could easily feel how great it is when they wear these swim trunks

Material: peach skin / microfiber + Quick-drying fabric.

Product Features: With a Brief Mesh lining and 2 side Pockets.

Size:Boy Size 6-20.Elasticized waistband with drawstring,can be freely adjusted according to your waist.

These are the cutest, fashion-forward little boy shortie Euro style boy swim trunks! Picture perfect for the pool, beach, and spray park!

UPF 50+ UV sun protective fabric, blocking 98% of UVA and UVB cancer causing sun rays keeping sensitive little boy skin covered from the sun.

Soft, chlorine resistant fabric.

AWESOME POKEMON SWIMMING SHORTS FOR BOYS - Our super cool Pokémon Pikachu bathing trunks for children is the best way to splash around during holiday vacations, swimming on beach and pool days whilst staying comfortable in gamer style!

BATHING SHORTS AVAILABLE IN VARIETY OF SIZES - The Pokémon gamer swim shorts for kids comes in sizes; 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11 and 11-12 years offering a comfortable and regular boy fit made for ultimate comfort, perfect for beachwear!

100% POLYESTER PIKACHU SWIM SHORT BOTTOMS - The Pokémon swimwear for boys is made from polyester for a light and very soft feel. Perfect for your holiday suitcase, the gamer pool shorts have an adjustable drawstring waistband for the perfect fit!