By PickSmartly Editorial Team
· Updated Aug 4, 2026
9.8PM Score
Products Compared
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Brands Ranked
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Finding the perfect pair of trunks is about more than just picking a color you like. It is about balancing structural support, moisture management, and long-term skin comfort. When diving into the world of premium underwear, specifically focusing on the specialized fit and fabric profiles offered by brands like Lucowee, you are looking for a garment that functions as a second skin rather than a restrictive layer. Whether you are selecting trunks for high-intensity athletic performance or for everyday professional wear, the nuances of waistband tension, seam placement, and fabric elasticity will dictate whether your day is comfortable or a constant battle of adjustments.
Editor's Choice
Our Top Picks for Lucowee Trunks
The three top picks on this page — ranked by PM Score, our 0–10 measure built from the customer star rating and review volume.
✔ 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.
✔ TRUE BOYS REGULAR SIZE - Normal US size,read the size chart picture pls.If your boy is lean or average,take your waist size to buy.Then if he is husky size,please compare his waist with weight,then choose a size which is bigger from the chart.As a mother of 2 boys,I advice you take the bigger size if your kids are between 2 size,boys grow so fast in teenage!
✔ MORE BOUNUS YOU GET - 3 Pocket: Reinforced deep side pockets with perforated mesh lining for efficient draining,Secure back pocket with Velcro flap to hold valuables also with draining eyelet.Self-design unique patterns and prints,you'll have a pair of trunks destined to be ever-reliable throughout your sun-soaked summer.Few dollars added,Double happiness got! :)
LUCOWEE Boys' Swim Trunks stand out because of their high-performance recycled fabric and built-in compression liner that prevents chafing. I love how the 4-way stretch material feels lightweight and quick-drying, which is a lifesaver during long afternoons at the pool. The boxer brief liner is soft enough to provide support without feeling overly restrictive, making these versatile enough for everything from swimming to intense backyard training. You also get practical features like deep mesh-lined side pockets and a secure Velcro back pocket for small treasures. With the UPF 50+ protection and a reliable drawstring waist, these trunks are built to handle active kids who are constantly on the move. They truly feel like a durable, reliable staple for any summer wardrobe.
✔ 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.
✔ TRUE BOYS REGULAR SIZE - Normal US size,read the size chart picture pls.If your boy is lean or average,take your waist size to buy.Then if he is husky size,please compare his waist with weight,then choose a size which is bigger from the chart.As a mother of 2 boys,I advice you take the bigger size if your kids are between 2 size,boys grow so fast in teenage!
✔ MORE BOUNUS YOU GET - 3 Pocket: Reinforced deep side pockets with perforated mesh lining for efficient draining,Secure back pocket with Velcro flap to hold valuables also with draining eyelet.Self-design unique patterns and prints,you'll have a pair of trunks destined to be ever-reliable throughout your sun-soaked summer.Few dollars added,Double happiness got! :)
LUCOWEE swim trunks set a high bar for active boys who need gear that transitions seamlessly from the pool to the playground. The standout feature is the built-in boxer brief liner, which provides supportive compression without feeling restrictive during growth spurts. Crafted from recycled 4-way stretch fabric, these shorts feel lightweight and dry incredibly fast thanks to the moisture-wicking technology. I particularly like the thoughtful design of the three pockets, including a secure Velcro back pocket for small treasures and mesh-lined side pockets that drain water instantly. With UPF 50+ sun protection and a reliable drawstring waist, these are reliable summer essentials for everything from heavy swimming to intense training sessions.
☀ 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.
☀ TRUE BOYS REGULAR SIZE - Normal US size,read the size chart picture pls.If your boy is lean or average,take your waist size to buy.Then if he is husky size,please compare his waist with weight,then choose a size which is bigger from the chart.As a mother of 2 boys,I advice you take the bigger size if your kids are between 2 size,boys grow so fast in teenage!
☀ MORE BOUNUS YOU GET - 3 Pocket: Reinforced deep side pockets with perforated mesh lining for efficient draining,Secure back pocket with Velcro flap to hold valuables also with draining eyelet.Self-design unique patterns and prints,you'll have a pair of trunks destined to be ever-reliable throughout your sun-soaked summer.Few dollars added,Double happiness got! :)
Active boys who refuse to sit still during summer break need these LUCOWEE swim trunks to prevent the dreaded dreaded skin chafing. The standout feature is the built-in boxer brief liner, which provides supportive compression without feeling overly restrictive for growing kids. I love that the fabric is a recycled 4-way stretch blend, making it durable enough for running and training even when they aren't in the water. The UPF 50+ protection is a massive win for long pool days, and the functional drawstring ensures a secure fit during rigorous play. With deep mesh-lined side pockets and a secure Velcro back pocket, these trunks are built to handle everything from beach volleyball to heavy splashing while keeping small valuables safe.
✔ 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.
✔ TRUE BOYS REGULAR SIZE - Normal US size,read the size chart picture pls.If your boy is lean or average,take your waist size to buy.Then if he is husky size,please compare his waist with weight,then choose a size which is bigger from the chart.As a mother of 2 boys,I advice you take the bigger size if your kids are between 2 size,boys grow so fast in teenage!
✔ MORE BOUNUS YOU GET - 3 Pocket: Reinforced deep side pockets with perforated mesh lining for efficient draining,Secure back pocket with Velcro flap to hold valuables also with draining eyelet.Self-design unique patterns and prints,you'll have a pair of trunks destined to be ever-reliable throughout your sun-soaked summer.Few dollars added,Double happiness got! :)
Active boys who refuse to sit still during summer vacation need these LUCOWEE swim trunks to prevent the dreaded chafing that ruins a day at the pool. The standout feature is the built-in boxer brief liner, which provides supportive compression without being so tight that it restricts growth or movement. I love that the shell uses recycled 4-way stretch fabric, making them incredibly lightweight and quick-drying after a heavy swim session. The functional drawstring and metal grommets ensure a secure fit even during rigorous water sports, while the UPF 50+ finish offers much-needed sun protection. With deep, mesh-lined pockets and a secure Velcro back pocket, these trunks transition seamlessly from swimming to running around the playground.
LUCOWEE Boys Devil Fish Ocean Swim Trunks with Boxer Brief Liner Anti Chafe No Pinching Swimming Shorts Compression Lined 4-Way Stretchy UPF Quick Dry...
☀ 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.
☀ TRUE BOYS REGULAR SIZE - Normal US size,maybe run alittle big,read the size chart picture pls.If your boy is average,take your waist size to buy.Then if he is husky size,please compare his waist with weight,then choose a closest size from the chart.Don't size up than usual for these are adjustable waist and stretchy material!
☀ MORE BONUS YOU GET - 3 Pocket: Reinforced deep side pockets with perforated mesh lining for efficient draining,Secure back pocket with Velcro flap to hold valuables also with draining eyelet.Self-design unique patterns and prints,you'll have a pair of trunks destined to be ever-reliable throughout your sun-soaked summer.Few dollars added,Double happiness got! :)
LUCOWEE Boys Devil Fish Ocean Swim Trunks deliver a massive upgrade to summer playtime with their high-performance, recycled 4-way stretch fabric. What really sets these apart is the built-in boxer brief liner, which provides soft compression that prevents painful chafing without feeling overly restrictive on growing kids. Whether they are sprinting through sand or diving into a pool, the UPF 50+ sun protection and quick-dry material keep them comfortable and shielded from UV rays. I love the practical design choices too, like the deep side pockets with mesh drainage and the secure Velcro back pocket for small treasures. Between the adjustable drawstring waist and the unique ocean prints, these trunks are built to handle everything from intense training to lazy beach days.
☀ ULTRACOOL NO CHAFE BOXER LINER - Have you been devastated by painful rashes from mesh and nets lined swim trunks? LUCOWEE have a unique innovative Compression Boxer Liner to solve it. Our ULTRACOOL inner layer with extra room 3D-Pouch eliminating the need for underwear, resulting in no more wet jocks, no more chafing for all day wear. Specially, those 2.5 thousands holes per square foot in the lining will keep your goods as cool as you could imagine!
☀ RECYCLED 4-WAY STRETCHY FABRIC - 90% recycled polyester, 10% spandex. Durable, light weight high-performance & water repellent for Quick-drying and UPF 50+ to protect skin from the sun's harmful ultraviolet rays. The eco-friendly fabric made of recycled materials, including plastic bottles and fishing nets. Our Lucowee swim shorts allow for full range of motion with minimal restriction so you can swim, walk, run and enjoy your day with a smile.
☀ REAL DRAWSTRING & ZIPPER POCKETS - These men's swimsuits have functional cording all around waist which can be tighten, elastic waistband offers a great personal fit. Our swim shorts have 2 side zipped sand proof pockets, good quality and durable for 30,000 times use about(3 summers), large enough to fit an plus size cellphone of 6.3", also are deep, roomy & zipper plus keep your valuables where they should be! Tha's a great bathing suit for men!
☀ BUILT-IN SHIRT LOOP & ANTI-TEAR BACK LINE - Have you ever had your shirt blown away by the sea wind? I did! also my cap,lol. We uaually take off the tops when walking on the beach, so the question is there is no a proper place to fix it. So we designed a back loop for the shorts, it can hold the Tees, tank,cap or towel expediently. Also,we used a extra anti-tear joint on the upper hip, so people won't be suprised when you performing rigorous activities like deep squat etc,.
☀ MORE BONUS YOU GET - 3 Pocket: 2 side zipped & 1 velcro flap back pocket with perforated mesh lining for efficient draining. All the eyelets of this bathing suit for men are Embroidery.Original-design unique patterns prints & Chlorine-resistant fabrics. We stand by our quality products as being the best on the market and to back it we offer full, hassle free refunds in the unlikely event they don't fit or feel right! Several dollars added,Double happiness got! :)
Most swimmers settle for itchy mesh liners that cause painful chafing, but LUCOWEE replaces that outdated design with an innovative UltraCool compression boxer. This 3D-pouch liner features thousands of tiny ventilation holes to keep you cool and comfortable without needing extra underwear. The 7-inch inseam is crafted from eco-friendly, recycled 4-way stretch fabric that moves with you, whether you are sprinting through waves or deep squatting on the sand. I especially love the practical touches, like the sand-proof zippered pockets that actually fit a large smartphone and the clever back loop for hanging your shirt or towel. With UPF 50+ protection and chlorine-resistant materials, these shorts are built for serious, all-day beach performance.
☀ ULTRACOOL NO CHAFE BOXER LINER - Have you been devastated by painful rashes from mesh and nets lined swim trunks? LUCOWEE have a unique innovative Compression Boxer Liner to solve it. Our ULTRACOOL inner layer with extra room 3D-Pouch eliminating the need for underwear, resulting in no more wet jocks, no more chafing for all day wear. Specially, those 2.5 thousands holes per square foot in the lining will keep your goods as cool as you could imagine!
☀ RECYCLED 4-WAY STRETCHY FABRIC - 90% recycled polyester, 10% spandex. Durable, light weight high-performance & water repellent for Quick-drying and UPF 50+ to protect skin from the sun's harmful ultraviolet rays. The eco-friendly fabric made of recycled materials, including plastic bottles and fishing nets. Our Lucowee swim shorts allow for full range of motion with minimal restriction so you can swim, walk, run and enjoy your day with a smile.
☀ REAL DRAWSTRING & ZIPPER POCKETS - These men's swimsuits have functional cording all around waist which can be tighten, elastic waistband offers a great personal fit. Our swim shorts have 2 side zipped sand proof pockets, good quality and durable for 30,000 times use about(3 summers), large enough to fit an plus size cellphone of 6.3", also are deep, roomy & zipper plus keep your valuables where they should be! Tha's a great bathing suit for men!
☀ BUILT-IN SHIRT LOOP & ANTI-TEAR BACK LINE - Have you ever had your shirt blown away by the sea wind? I did! also my cap,lol. We uaually take off the tops when walking on the beach, so the question is there is no a proper place to fix it. So we designed a back loop for the shorts, it can hold the Tees, tank,cap or towel expediently. Also,we used a extra anti-tear joint on the upper hip, so people won't be suprised when you performing rigorous activities like deep squat etc,.
☀ MORE BONUS YOU GET - 3 Pocket: 2 side zipped & 1 velcro flap back pocket with perforated mesh lining for efficient draining. All the eyelets of this bathing suit for men are Embroidery.Original-design unique patterns prints & Chlorine-resistant fabrics. We stand by our quality products as being the best on the market and to back it we offer full, hassle free refunds in the unlikely event they don't fit or feel right! Several dollars added,Double happiness got! :)
☀ ULTRACOOL NO CHAFE BOXER LINER - Have you been devastated by painful rashes from mesh and nets lined swim trunks? LUCOWEE have a unique innovative Compression Boxer Liner to solve it. Our ULTRACOOL inner layer with extra room 3D-Pouch eliminating the need for underwear, resulting in no more wet jocks, no more chafing for all day wear. Specially, those 2.5 thousands holes per square foot in the lining will keep your goods as cool as you could imagine!
☀ RECYCLED 4-WAY STRETCHY FABRIC - 90% recycled polyester, 10% spandex. Durable, light weight high-performance & water repellent for Quick-drying and UPF 50+ to protect skin from the sun's harmful ultraviolet rays. The eco-friendly fabric made of recycled materials, including plastic bottles and fishing nets. Our Lucowee swim shorts allow for full range of motion with minimal restriction so you can swim, walk, run and enjoy your day with a smile.
☀ REAL DRAWSTRING & ZIPPER POCKETS - These men's swimsuits have functional cording all around waist which can be tighten, elastic waistband offers a great personal fit. Our swim shorts have 2 side zipped sand proof pockets, good quality and durable for 30,000 times use about(3 summers), large enough to fit an plus size cellphone of 6.3", also are deep, roomy & zipper plus keep your valuables where they should be! Tha's a great bathing suit for men!
☀ BUILT-IN SHIRT LOOP & ANTI-TEAR BACK LINE - Have you ever had your shirt blown away by the sea wind? I did! also my cap,lol. We uaually take off the tops when walking on the beach, so the question is there is no a proper place to fix it. So we designed a back loop for the shorts, it can hold the Tees, tank,cap or towel expediently. Also,we used a extra anti-tear joint on the upper hip, so people won't be suprised when you performing rigorous activities like deep squat etc,.
☀ MORE BONUS YOU GET - 3 Pocket: 2 side zipped & 1 Velcro flap back pocket with perforated mesh lining for efficient draining. All the eyelets of this bathing suit for men are Embroidery.Original-design unique patterns prints & Chlorine-resistant fabrics. We stand by our quality products as being the best on the market and to back it we offer full, hassle free refunds in the unlikely event they don't fit or feel right! Several dollars added,Double happiness got! :)
Most swim trunks are designed to make you uncomfortable the moment you step out of the water, but the LUCOWEE design flips that script. Instead of the dreaded mesh netting that causes painful chafing, these shorts feature an innovative 3D-pouch compression liner with thousands of micro-holes for maximum airflow. The 4-way stretch fabric feels incredibly lightweight and moves with you, whether you are sprinting through the surf or deep squatting on the sand. I was particularly impressed by the practical details, like the sand-proof zippered pockets that actually fit a large smartphone and the clever back loop for hanging your shirt or towel. It is a rare find that combines eco-friendly recycled materials with high-performance utility like UPF 50+ protection.
The most critical factor in selecting trunks is the textile blend. High-quality trunks should prioritize moisture-wicking properties to prevent chafing and discomfort during long hours of wear. Look for blends that incorporate micro-modal, bamboo, or high-grade cotton with a touch of elastane (Spandex). Micro-modal is particularly prized in this category because it offers a silk-like softness that reduces friction against the skin, while the elastane ensures the trunks retain their shape after multiple wash cycles. Avoid heavy, 100% thick cotton if you plan on being active, as it tends to absorb sweat and become heavy and abrasive. Instead, aim for a breathable blend that allows for airflow to regulate temperature in sensitive areas.
Evaluate the Waistband Construction
A common failure in low-quality trunks is a waistband that either rolls over or digs too deeply into the hip. When evaluating trunks, check the width and the elasticity of the waistband. A premium waistband should be wide enough to distribute pressure evenly across your waist, preventing the 'muffin top' effect or skin irritation. Look for 'no-roll' technology or brushed interior linings on the waistband. This ensures that even when you are sitting or bending, the fabric stays anchored without pinching. The tension should be firm enough to stay in place during movement but flexible enough to accommodate natural bloating or shifts in posture throughout the day.
The Importance of the Pouch and Support Structure
The defining characteristic of a well-designed trunk is how it handles anatomical support. Unlike standard briefs, high-performance trunks often feature a contoured pouch. This design provides a dedicated space that lifts and separates, reducing skin-on-skin contact which is the primary cause of heat buildup and chafing. When shopping, look for 'ergonomic pouch' descriptions or seamless construction in the crotch area. Seamless technology is a significant upgrade, as it eliminates the thick, bulky seams that can cause irritation during repetitive motions like walking or running.
Fit and Leg Length Considerations
Trunks are characterized by a shorter leg than boxer briefs, which makes them ideal for wearing under slim-fit trousers or tailored shorts. However, the 'rise'—the distance from the crotch to the waistband—is a vital decision factor. A low-rise trunk is excellent for low-slung jeans, while a mid-rise trunk offers more security for daily wear. Ensure the leg openings have enough elasticity to prevent 'riding up.' If the leg fabric is too loose, it will bunch under your clothes. If it is too tight, it will restrict circulation. The ideal fit should feel snug against the thigh without leaving deep indentations in the skin.
Durability and Maintenance
Finally, consider how the trunks will hold up over time. Check the stitching quality, particularly around the leg cuffs and the base of the pouch. Double-stitched seams are a hallmark of longevity. Because high-performance fabrics like modal can be delicate, check the care instructions. The best trunks are those that maintain their 'memory'—meaning they snap back to their original shape after being stretched—rather than becoming saggy after a few hours of wear.
Ready to choose?
Jump back to our ranked picks or compare the shortlist side by side.
Quick answers about Lucowee Trunks before you buy.
Look for high-quality combed cotton or modal blends. These materials offer superior breathability and a soft touch against the skin, preventing irritation during long periods of wear.
Trunks typically feature a shorter inseam than boxer briefs. If you are between sizes, consider sizing up to prevent the leg openings from riding up or feeling too restrictive around the thighs.
Yes, most modern trunks are designed with contoured pouches that offer significant support. However, for high-impact sports, ensure the waistband is elastic enough to stay secure without digging in.
Seek out trunks with a slightly tapered leg design or a reinforced hem. Fabrics with a small percentage of elastane or spandex help the fabric retain its shape and hug the thigh naturally.
Trunks are an excellent choice for slim-fit clothing because their shorter profile minimizes fabric bunching around the upper thigh, creating a smoother silhouette.
To maintain hygiene and structural integrity, replace your trunks every 6 to 12 months, especially if you notice thinning fabric, loss of elasticity in the waistband, or fading colors.
The primary difference lies in the leg length. Trunks have a shorter inseam that sits higher on the thigh, whereas boxer briefs offer more coverage and a longer leg length.
Rankings & Insights
Our Lucowee Trunks Rankings
8Products Compared
8.2Avg PM Score
1Brands Ranked
Top 10 Lucowee Trunks Brands on Amazon
Share of top-ranked products by brand, from our rankings.
