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Top 10
June 2025
Best Long Sleeve Swim Shirt Boys 4t
We made a list of the top 10 Long Sleeve Swim Shirt Boys 4t based on verified reviews, popularity and other factors which we summarized for you in this list.
Best Choice
1
Simple Joys by Carter's Boys' Swimsuit Trunk and Rashguard Set, Black/Sky Blue Whales, 4T
Simple Joys by Carter's
9.6
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2-Piece Swim Set: Includes a rashguard top and matching swim bottoms, providing a complete and coordinated beach or pool outfit for easy styling.
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Versatile Sleeve Options: Available in both long and short sleeve options, giving flexibility to match different weather conditions and levels of sun protection.
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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.
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Tagless Design: The tagless interior ensures a soft, irritation-free experience, keeping your child comfortable for hours of fun.
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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.
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Quick-Dry Fabric: Made from lightweight, quick-drying materials to keep kids comfortable in and out of the water and reduce chill.
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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.
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OEKO-TEX Certified: Made from materials that meet the OEKO-TEX Standard 100, ensuring they are safe for delicate skin.
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2
Boys Rash Guard Neon Orange Swim Shirt Long Sleeve for Toddler Kids 4T Rashguard Water Swimwear UPF+ 50 Swimming Sun Shirt Swimwear
Semois
9.4
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100% Sun Proof: Long sleeve design with UPF56+ protection rash guard against harmful UVA/UVB rays, making it perfect for outdoor activities.
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Skin Friendly Quick Dry Swim Shirt--80%polyester and 26% Spandex Moisture-wicking fabrics are designed to pull moisture away from the skin and evaporate it quickly, helping kids stay dry and comfortable. Ideal shirts for outdoor activities or sports where the boys may sweat or get wet.
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Fits Well: Neither too loose nor too tight, this swim shirt offers maximum comfort and flexibility and is perfect for a wide range of activities, including swimming, surfing, paddle boarding, and more.
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Easy Care: The rash guard shirt is machine washable and easy to care for, making it a practical choice for busy parents.
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Gifts for Boys: Our rashguard shirt is also a perfect gift for your son, grandson, nephew, little brother, cousin, or friend.
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3
2Pack Rash Guard for Boys White & Navy Blue Swim Shirt Long Sleeve for Toddler Kids 4T Rashguard Water Swimwear UPF+ 50 Swimming Shirt
Semois
9.3
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100% Sun Proof: Long sleeve design with UPF50+ protection rash guard against harmful UVA/UVB rays, making it perfect for outdoor activities.
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Quick-Dry & Lightweight: The breathable fabric is designed to dry quickly, allowing kids to stay comfortable in and out of the water.
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Fits Well: Neither too loose nor too tight, this swim shirt offers maximum comfort and flexibility and is perfect for a wide range of activities, including swimming, surfing, paddle boarding, and more.
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Easy Care: The rash guard shirt is machine washable and easy to care for, making it a practical choice for busy parents.
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Gifts for Boys: Our rashguard shirt is also a perfect gift for your son, grandson, nephew, little brother, cousin, or friend.
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15% Discount
4
Boys Swim Shirt Long Sleeve Rash Guard for Toddler Kids UPF+ 50 Rashguard Sun Protection Surfing Swim Wear Boys Bathing Shirt 4T Ivory
OYJ
9.2
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Boys Swim Shirt Sun Armor (UPF50+) Rash Guard for Boys proven to block 100% UVA/UVB rays - the highest UV protection rating. Let kids splash worry-free for hours, even under peak sunlight at 10am-4pm.
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Fast Dry Tech for Water Play Quick Dry fabric wicks moisture 3X faster than regular boy rash guards. Prevents post-swim chills with instant evaporation - perfect for jumping between pool and ice cream breaks!
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Sensory Comfort Engineering Tagless design + buttery-soft flat seams prevent 'swim rash'. Stretchy cuffs grow with kids from 2T to 14Y - stays put during cannonballs without restricting movement.
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Rash Guard for Boys Durability Survives 50+ washes without fading or pillin. Stain-resistant fabric shrugs off popsicle drips and chlorine - just toss in laundry with beach towels.
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Adventure-Ready Style NEON safety colors make kids visible in crowded pools. Mix-and-match with swim trunks using our color guide. Ideal for camp or family vacations!
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10% Discount
5
Willit Boys Rash Guard Swim Shirt Baby/Toddler Long Sleeve UPF 50+ Sun Protection SPF Quick Dry Shirt White 4T
Willit
9.1
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Quick Dry: Lightweight, yet breathable fabric wicks moisture away from your skin, to be comfortable and fresh all day. Endurance+ fabric built-in chlorine resistance protects the swim shirts against chlorine
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UV Protection: The fabric rating UPF 50+ protects skin from the harmful UVA/UVB rays, keeping your little guy's stay safe in the sun!
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No-Chafe Comfort: Flat lock seams and no tag collar minimize friction and offer great comfort. Machine washable
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Stylish Design: The crew neck design and classic style give it a sleek look
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This Baby/Toddler Boys Swim Shirt is lightweight and fitted without being too tight, letting your kids have fun at the beach, lake or pool!
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6
ESTAMICO Boys Long Sleeve Rash Guard Swim Shirts UPF 50+ Sun Protection Swimwear Quick Dry Rashguard Athletic Swimwear, Navy 4T
ESTAMICO
9.0
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Durable stretchy Fabric quick dry long sleeved swim tops
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Slim Fit: 18% spandex fabric with good elastic, order a Size Up if you don't like tighter fitting
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Upf 50+ Protection Shirts Stop Sun Burns
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Perfect for swimming, playing at the beach or going to the water park, the long sleeve t- shirt design provides extra sun protection for your little ones
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Not see through and no bleading, CARE INSTRUCTION: Hand wash reverse side and use gentle detergent,do not scrub and iron printing pattern
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7
Toddler Boys' Swim Rashguard 4t Bathing Suit Boys Long Sleeve Swimming Trunks Rash Guard Set Kids Swimwear Set Green/Daddy Dinosaur 4T
UMELOK
8.9
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Features: This Boys Swimming suit is more form-fitting and comfortable. Their primary purpose is to offer an alternative to sunscreen to protect your boy's skin from the sun's UV radiation and possible skin cancer
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Material: This is an boy swim athletic shirt made of polyester, nylon, and spandex, carry a UPF rating of 50+, which blocks out over 98% of the sun's harmful rays. The boy’s rash guard shirt protects your boy against rashes caused by abrasion, or by sunburn from extended exposure to the sun, as sun protective clothing
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Occasion: Even though the Boy Rash guard applies to water sports,like: swimming,boating,surfing, water skiing,skim-boarding, your boy can still wear it for a range of other activities: golfing, tennis, gardening, playing in the sprinklers, water parks, beach trips, pool play, in mixed martial arts and Brazilian jiu-jitsu, and even as normal everyday clothing
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Washing: As it's Nylon blend clothes,hand wash is recommended, or using laundry bag when machine wash
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Package: 1X Boys Rash guard sets
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30% Discount
8
Hurley Boys' Long Sleeve Rash Guard Shirt, Tropical Twist, 4T
Hurley
8.8
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QUALITY MATERIALS: Made from double jersey fabric provides you with warm and comfortable feel during your adventures.
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MOISTURE-WICKING TECHNOLOGY AND UPF PROTECTION: The H2O-Dri technology helps to keep you dry, while the UPF 50 protection helps to shield your skin from harmful UV rays.
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EASY COMFORT: The crew neck and long sleeves provide easy movement and comfort.
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ICONIC LOGO: The signature Hurley logo keeps you connected to the community.
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COMFORTABLE FIT: Features a regular fit for an easy, casual look.
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50% Discount
9
Angel season Boys Rash Guard Swim Shirt Long Sleeve Rashguard for Toddler Kids UPF 50+ Swimwear White Blue 4T
Angel season
8.7
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Angel season boys swim shirt provide excellent build-in uv protection with UPF 50+, shielding your child's skin from harmful UVA/UVB rays during outdoor activities. Perfect for the summer seaside beach, lake or pool!
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Angel season boys rash guard shirts are made with quick-dry fabric, breathable, skin-friendly and lightweight. Long sleeve swim shirts ensure your child stays comfortable and dry even after water play or intense physical activity. Also our rash guard for boys endurance and chlorine resistance.
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Rash guard with flat lock seams and the crew neck design offer great comfort for your little boy, classic style boys rash guard suitable various style, make your child stand out from the crowd. Angel season boys bathing suit machine washable.
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Boys long sleeve rash guard shirt designed as a swimsuit is an ideal summer holiday gift choice for your son or grandson, perfectly suited for a variety of water and outdoor activities such as swimming, surfing, wakeboarding, stand-up paddleboarding (SUP), rock climbing, yachting, fishing, sailing, hiking, rowing, and more.
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Angel season boys bathing suits is offered for baby, toddler, kids in sizes ranging from 2t to size 8. For the best fit, kindly consult our size chart for precise measurements. If you preferred loose fit, recommend 1 size up!
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23% Discount
10
Quad Seven Toddler Boys Rash Guard Shirt - Long Sleeve Swim Shirt for Baby and Toddler Boys (Size: 2T-4T), Size 4T, Neon Lime
Quad Seven
8.6
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Ultimate Sun Protection for Active Toddlers: Keep your little one safe with our long sleeve toddler boy rash guard swim tops. Ideal for beach days or backyard fun, this toddler baby sun shirt helps shield delicate skin from harmful rays.
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Designed for Comfort & Movement: Crafted from soft, breathable fabric, this toddler rash guard swim shirt offers all-day comfort and freedom to splash, run, and play. Great for growing toddler boys, available in sizes 2T, 3T and 4T.
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Stylish & Functional Swimwear: Designed with both performance and playful style in mind, this baby boy swim shirt is perfect for beach days and poolside adventures. Inspired by popular trends in boys rash guard swimwear, it's available in classic colors like white, navy, black, red, yellow, neon orange and neon yellow.
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Easy to Wash, Built to Last: Machine washable and fade-resistant, this toddler rash guard shirt is perfect for everyday wear. Whether it's the pool, lake, or swim class, just rinse, wash, and repeat!
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Quick-Dry Fabric for All-Day Fun: Made with moisture-wicking, quick-dry fabric, this rash guard ensures your toddler stays dry and comfortable, whether they're splashing in the pool or playing in the sand. Ready for any adventure, this shirt dries fast and keeps up with your little one's active lifestyle.
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