Best S Boys Swim Trunks in 2026

UPF 50+ quick dry microfiber: lightweight and durable for your most comfortable pair of swim trunks

Side seam pockets and cargo pockets give plenty of options for storage

Available in men's sizes S-XXL and kids sizes 2T through 20 so dad's and kids can hit the beach as a team

Classy and trendy designs: Our boys bathing suits have over 30 new and classic designs and including camo swim trunks, American flag boys swim trunks, dinosaur, and a range of solid colors including red, ocean blue or black. All-new designs include tropical flowers and fruits, ocean animals or trending stripes.

Made for Comfort: These boys swim trunks use triple layers, including mesh lining and ultra-soft, breathable and lightweight fabric to ensure your greatest comfort. Our extra thick drawstring not only looks stylish, but won’t easily loosen

Made to Perform: Our boys swimming trunks are made to last, so that your kid can enjoy the fun at the beach. We leave room at the crotch and thigh, while keeping your boy looking slim and fit. They’re quick-drying, too.

【Made for Comfort】- These boys swim trunks use triple layers, including mesh lining and ultra-soft, breathable and lightweight fabric to ensure your greatest comfort. Our extra thick drawstring not only looks stylish, but won’t easily loosen.

【Made to Perform】- Our boys swimming trunks are made to last, so that your kid can enjoy the fun at the beach. We leave room at the crotch and thigh, while keeping your boy looking slim and fit. They’re quick-drying, too.

【Classy and trendy designs】- Our boys bathing suits have over 30 new and classic designs and including camo swim trunks, American flag patriotic boys swim trunks, dinosaur, and a range of solid colors including red, ocean blue or black. All-new designs include tropical flowers and fruits, ocean animals or trending stripes.

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.

Water Repellent

Quick drying

Elasticated waist with mesh interior brief

✔ 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.

Quick Dry Shorts: The boys swim trunks made of polyester which is lightweight, comfortable, waterproof and quick dry; UPF 50+ which blocks 90% of the sun's harmful.

Kids Boys Swim Trunks Feature: The beach boardshorts with novelty pattern (Dinosaur; Galaxy Cats; Tacoa Cats; Rainbow Unicorn), Elasticized waistband with drawstring and two side pockets.

Suit for 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.

100% Polyester

Officially licensed Marvel Comics Avengers big boys cute and stylish swimming shorts bottoms

All over print design; Awesome sublimation print design; UPF 50+ material for UVB and UVA protection and worry-free sun time; Drawstring closure; Elastic waist for better fit

Officially licensed Star Wars big boys cool and stylish short sleeve swim shirt top and cute and stylish swimming shorts bottoms

All over print design; Contrast raglan sleeves; Awesome sublimation print design; UPF 50+ material for UVB and UVA protection and worry-free sun time; Mesh-lined swim shorts; Drawstring closure; Elastic waist for better fit; Pull on closure

Stylish kid's rash guard shirt and board shorts bathing suit with a comfortable fit and easy-to-dress design; youth fashion swimwear made from material that protects your child from the sun and is safe on skin

High quality and SPF/UPF 50+ protection

COMFORTABLE: silky and smooth fabric that kids love

DURABLE: no cheap materials in here!

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!

Kids Minecraft Swimshorts

These black shorts feature an eye-catching motif of the Creeper in green with an elasticated waistband and matching draw string

Complete with an embroidered print of the Minecraft logo and handy back pocket

🌈[2in1 boxer brief liner]: boys swim trunks with compression liner is soft and comfortable. You Won't Feel Tight. Prevents itching caused by sand,double layer no mesh prevents the outer fabric from rubbing against the skin and it likes the comfort of your second skin

🌈[Amazing Fit boys board shorts]: father son matching swim trunks, No matter how old the child—from age 2 to 16 years old—every child gets comfort and style with father son matching bathing suits swimwear, comfortable fit. Use the helpful sizing chart to find your child perfect fit

🌈[Elastic Waistband with Drawstring]: Drawstring can be used freely adjustable tightness according your child waist, Minimalism Design Bath Suit for Any Circumstance include beach,Sailing, Boating, Walking, Fishing,playing, swimming,Family Outing and So on

TSLA Surfista Waves Series design for all swimmers.

*** Washing Tip : Wash separately before wearing ***

[Materials] 100% Polyester fabric is for quick-drying and soft feel.

This 7" inseam swim trunk is your next vacation swim essential featuring quick-dry fabric in a variety of patterns

Two on-seam side pockets, welt back pocket, and full elastic waistband with drawstring

Sport made better: we listen to customer feedback and fine-tune every detail to ensure quality, fit, and comfort

⚽ FABRIC: Boys' Compression Beach Shorts are made from quick drying, lightweight, breathable and stretchy 100% polyester that blocks 98% of harmful UV rays.

⚽ New Compression Short Liner Design: The Cozople Swim Trunks have a silky smooth stretch Compression Lining. It's a lightweight, ultra-supportive, chaf-resistant Boxer Brief Liner that provides breathability and support as your boy stretch. In addition to that, The Compression Liner Swim Shorts protects your skin from scratches and prevents sand from sticking to your skin.

⚽ FEATURES: Drawstring waist, double side pockets; high-tech 3D all-over pattern printing, durable and non-fading; unique and novel printing styles include stripes, Hawaiian leaves, pineapples, palm trees, flamingos, etc.

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: 100% polyester, high quality, quick-drying, breathable, lightweight, comfortable and skin-friendly fabric, can direct contact to skin.

Mens Swim Trunks Garment Care: Machine wash or hand wash, recommend with cold water, do not use bleach.

Feature: Board shorts with mesh lining covered elastic waist band with drawstring, it could fit you better, two side pockets can be expanded to hold your phone or small accessories.

FABRIC: Long lasting polyester spandex blend for durability, reduced water absorption and speed. Chlorine resistant.

SPORTY DESIGN: These swimsuits are sleek, stylish and form fitting. "V" panel crotch for increased comfort and a sportier look.

TECHNOLOGY: Flatlock stitching and a flat drawstring lie flatter and closer to the body to help speed water flow over the swimmer. Ideal for competition swimming, training, and fitness swimming.

UPF 50+ SUN PROTECTION: These super cool swim trunk shorts are fabricated with UPF 50+ technology to help prevent sunburn and protect your boy’s delicate skin

WATERPROOF ZIPPER POCKET: Don’t worry about your boy losing anything while he's playing in his favorite swim suit; Suitable for sports activities such as surfing, kayaking, swimming, wakeboarding, or running on a sandy beach

QUICK DRY BOARD SHORTS: Swim trunk material wicks moisture and dries fast after fun in the water to keep boys active, fresh, and comfortable while preventing rashes

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!

BUILT-IN SUN PROTECTION - SwimZip's built-in sun protection blocks 98% of all UVA and UVB cancer-causing rays. No more sunburns! Keep your child's delicate skin safe in the sun with SwimZip's built-in UPF 50+ sun protection so there’s more time for enjoying the beach, lake, or pool and less time worrying about harsh UV rays and reapplying sunscreen.

EXTREMELY COMFORTABLE– We want your kids to be comfy!  We have selected a very comfortable fabric that is soft and stretchy with an elastic waistband and functional drawstring!

HIGH QUALITY - Designed in the USA, our swimsuits are made of high-quality fabric that’s fade-resistant and durable while still feeling soft and comfortable.

Kids DC Comics Batman surfsuit

A Bat-acular swimming costume featuring the uniform of the famous superhero Batman otherwise known as The Dark Knight

An eye-catching yellow and black all-in-one swimsuit that displays the bat wings logo and has a full zip at the back

From JACHS NY, this pack includes 2 unique pairs of boys swimming trunks! Each pair of swim trunks for boys features an inner mesh lining, waistband, and cargo pockets

Choose a swim trunk pack from our broad selection of awesome graphics and cool stripes, in addition to our solid color options like black, lime, orange, blue, red, and navy

Our boy swim trunks include a durable waist rope that keeps the boys swimsuit fitted, secure, and comfortable in the water

→7.9-8.9" inseam, 16.5-18.7" outseam.Mesh lining:Soft & comfortable.【The price of boys swim trunks is $19.99 for one piece and $29.99 for two pieces. The purchase of 2-piece package is more favorable. When placing an order, please select the color classification of 2-piece package.】

→Soft and comfortable:The boardshort's flatlock seams add softness and protection without skin chafing and irritation. It will fit most boys from 7-13 years

→Quick dry fabric:Our brand boy's bathing suits or swim trunks all get great quick dry function. normally take 5 to 10 minutes, shorts will dry already.lightweight and durable for your boy most comfortable pair of swim trunks.quality material that will withstand all your boy's summer adventures

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 shorts for playing,running,training,workout.

Elastic waistband drawstring --- This swim trunks for boys is drawstring design and elastic waistband, which can be adjusted to fit the waist freely to prevent the swimming trunks boys 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.

SWIMWEAR FOR BOYS: Boys' Swim Trunks built to last; Summer must-have Quick Dry Board Shorts with extra durability and support for your little boy; Versatile Swimwear features a back pocket for your little boy's goggles with a drawstring closure for a secure fit

QUICK DRY RASH GUARD: Quick Dry Technology Wicks Moisture; Rash Guard Bathing Suit for boys will leave your little boy enjoying swimming at the beach or waterpark all day long; Lightweight and durable bathing suit for your most comfortable pair of boys' classic Swim Trunks; Just right for play in the ocean at the beach with no rash and no more wet seats in the car

UPF 50+ SUN PROTECTION: UPF 50+ boys Bathing Suit for in and out-of-the-water sun protection; Protect your boys' skin from UVB and UVA ultraviolet sunlight; Reliable UV coverage and protection for your boy so you can both enjoy your day worry-free; Quality material that will withstand all your boy's summer adventures

Harry Bear loves making a big splash for fun in the sun!

Premium quality kids camouflage swim shorts

Super comfy mesh lined camo print swimming costume with two pockets

SWIMWEAR FOR BOYS: Skin friendly fabric of these swim shorts for boys is perfect for your boy's delicate skin; Let your son enjoy the summer with our high-quality swim trunks; Perfect while having fun at the pool or beach, these lightweight, durable, and comfortable shorts will withstand all his summer adventures

QUICK DRY: Perfect boys' bathing suit for the beach, pool, and summer vacation; The smooth fabric is durable for a long lasting fit with reduced discomfort and irritation; This swim trunks multipack for little and big boys is a real summer must-have

BATHING SUIT TRUNKS: Featuring two pairs of quick-dry board shorts, this boys' swim trunks bundle is perfect for the beach, pool, and summer vacation; Multiple sizes, colors, and prints ensure you choose the right match for your son; Purchase several styles and stretch out your boy's summer wardrobe

FABRIC: Long lasting polyester spandex blend that is quick drying, chlorine resistant, and fade resistant.

LINING: Inner lining on the front panel.

DESIGN: Boxer brief shaped swim jammer that offers more coverage than swim briefs. Inner drawstring at waist for a better fit.