Best Swimwear Sunsuits for Baby Boys of 2026

Bonnie Salem Avatar
Bonnie Salem
Last Updated: Jan 28, 2026

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Introducing swimwear sunsuits for baby boys, the perfect choice for a fun day at the beach or pool. These adorable and functional swimsuits are designed with the utmost care to provide maximum comfort and protection for your little ones. Made from high-quality materials, they offer excellent UV protection and are quick-drying to keep your baby cool and comfortable all day long. With vibrant colors and playful patterns, these swimwear sunsuits are sure to make a splash this summer.

At a Glance: Our Top Picks

Simple Joys by Carter's Baby Toddler Boys 2-Pack Zip Rashguards Cover #TOP 1
Simple Joys by Carter's Baby Toddler Boys 2-Pack Zip Rashguards
ftb score rating icon 9.9
SwimZip Boys' UPF 50+ Long-Sleeve Swimsuit Cover #TOP 2
SwimZip Boys' UPF 50+ Long-Sleeve Swimsuit
ftb score rating icon 9.8
Hnyenmcko Baby/Toddler Boy Long Sleeve Rash Guard Swimsuit Cover #TOP 3
Hnyenmcko Baby/Toddler Boy Long Sleeve Rash Guard Swimsuit
ftb score rating icon 9.6

Top 10 Swimwear Sunsuits for Baby Boys

#TOP 1

Simple Joys by Carter's Baby Toddler Boys 2-Pack Zip Rashguards

6L952210
18 Months
Simple Joys by Carter's Baby Toddler Boys 2-Pack Zip Rashguards Cover
Simple Joys by Carter's Baby and Toddler Boys' 2-Pack 1-Piece Zip Rashguards

The Simple Joys Carter's Rashguards come in a handy two-pack, giving you extra swimsuits to alternate or pack for trips and swim lessons. Their long sleeves cover your child’s arms fully, helping protect delicate skin from the sun while they play in the water. These rashguards feature fun, bright prints that make swim time enjoyable and stylish for active boys. Plus, they are designed without tags, so your little one experiences no irritation, ensuring they stay comfortable all day long while enjoying their water activities.

What We Like
Easy diaper changes
High-quality material
Sun protection
Good stretchiness
Cute designs
What We Don't Like
Sizing may run slightly large
#TOP 2

SwimZip Boys' UPF 50+ Long-Sleeve Swimsuit

Color Pop
18-24 Months
SwimZip Boys' UPF 50+ Long-Sleeve Swimsuit Cover
SwimZip Boys' Long-Sleeve UPF 50+ Swimsuit for Baby, Toddler, & Little Boys

The SwimZip Boys Sunsuit is designed to keep your little one safe and comfortable in the sun. It offers top-level sun protection certified by the Skin Cancer Foundation, so you can trust it shields your child from harmful UV rays effectively. The full-length sleeves and legs cover your boy’s skin completely, reducing the need for chemical sunscreens. Dressing and diaper changes are quick and easy thanks to the full front zipper, even when the suit is wet. Plus, the suit is made with stretchy, breathable fabric and raglan sleeves that allow your child to move freely and stay comfortable all day long.

What We Like
Full sun protection coverage
Easy diaper changes
Bright, high-visibility colors
Quality, stretchy material
Reduces sunscreen need
What We Don't Like
Dries slowly after use
Tricky to re-dress when wet
#TOP 3

Hnyenmcko Baby/Toddler Boy Long Sleeve Rash Guard Swimsuit

Animal-beige
6-12 Months
Hnyenmcko Baby/Toddler Boy Long Sleeve Rash Guard Swimsuit Cover
Hnyenmcko Baby/Toddler Boy Rash Guard Swimsuit Long Sleeve One Piece Zipper Swimwear Sunsuit Infant Bathing Suit Beachwear (Animal-Beige, 6-12 Months)

The Hnyenmcko Baby Rash Guard is made from a soft, stretchy blend of polyester and elastane that dries quickly and feels gentle on your baby's skin. This lightweight fabric also protects your little one from harmful UV rays, making it perfect for sunny days at the beach or pool. The swimsuit's long sleeves and easy zipper design allow you to dress your child quickly and comfortably. Plus, the cute dinosaur and marine animal prints add a fun touch, helping your toddler stand out while keeping them safe during water play or outdoor activities.

What We Like
High-quality soft material
Excellent sun protection
Easy to put on/off
Adorable design and patterns
Comfortable for sensitive skin
What We Don't Like
Hat sizing may vary
Sleeves or hat fit issues
#TOP 4

Xiaodriceee Infant Baby Boy One Piece Swimsuit

B-army Green
6-12 Months
Xiaodriceee Infant Baby Boy One Piece Swimsuit Cover
Xiaodriceee Infant Baby Boy Cute Short Sleeve Coconut Tree Swimsuit One Piece Swimsuit Summer Swimwear Toddler Bathing Suit (B-Army Green, 6-12 Months)

The Xiaodriceee Baby Swimsuit is made from 100% polyester, offering a lightweight and skin-friendly material that’s gentle on your baby’s delicate skin and easy for you to clean. Its cute coconut tree design with short sleeves and a crew neck adds style while keeping your little one comfortable. The front zipper makes it simple to put on and take off, saving you time and hassle. Plus, the stretchy fabric moves in all directions, allowing your baby to play freely without feeling restricted. This swimsuit is perfect for various water activities and keeps your baby both protected and stylish.

What We Like
Soft, breathable material
Comfortable fit
Easy-to-use zipper
Lightweight for hot days
Adorable design
What We Don't Like
No bottom snaps
Runs slightly big
#TOP 5

Gerber Baby Boys Toddler Sun Protection Rashguard Swimsuit

437231
Surfboard
3-6 Months
Gerber Baby Boys Toddler Sun Protection Rashguard Swimsuit Cover
Gerber Baby Boys Toddler Long Sleeve One Piece Sun Protection Rashguard Swimsuit, Surfboard, 3-6 Months

The Gerber Toddler Rashguard Swimsuit is designed to keep your little one comfortable and safe during water play. It features a half-length zipper with a neckline guard and snap closures at the legs, making it easy for you to dress and change your baby quickly. The swimsuit is made with UPF 50+ fabric, which offers excellent protection from harmful sun rays, so you can enjoy outdoor fun with peace of mind. Additionally, the fast-drying material helps prevent skin irritation from water exposure, ensuring your toddler stays rash-free while having fun in the sun and water.

What We Like
Excellent sun protection
Easy-to-use zipper
Quick drying material
Comfortable fit
Adorable design
What We Don't Like
No two-way zipper
No snaps for diaper changes
#TOP 6

upandfast Infant Boy One-Piece Swimsuit with Sun Hat

1227 Baby Swimsuit
Dark Green
6-9 Months
upandfast Infant Boy One-Piece Swimsuit with Sun Hat Cover
upandfast Infant Boy Swimsuit UPF 50+ Sun Protection Baby Boys' Swimwear One Piece Bathing Suit with Sun Hat (Green Whale, 6-9 Months)

The upandfast Baby Swimsuit offers a soft and stretchy fabric that keeps your little one comfortable and relaxed during water play. It comes with an adorable sun hat that shields your baby’s face and neck, providing extra protection while outdoors. With UPF 50+ sun protection, this swimsuit blocks most harmful UV rays to keep your child safe from sunburn. The convenient front and back zipper make it easy for you to dress and undress your baby quickly, while the zipper flap prevents irritation on delicate skin. This swimsuit is designed to make your child’s time in the water both fun and safe.

What We Like
UPF 50+ sun protection
Soft, stretchy, lightweight fabric
Quick-drying and durable
Easy on/off zipper design
Full coverage with cute designs
What We Don't Like
Tight leg openings for some
Zipper could be smoother
#TOP 7

UMELOK Infant Baby Boy Rash Guard Swimwear UPF 50+

Blue, Marine animals
12-18 Months
UMELOK Infant Baby Boy Rash Guard Swimwear UPF 50+ Cover
UMELOK Baby Boy Swimwear Infant Bathing Suit Rash Guard Swimwear UPF 50+ Sun Protection Swimsuit Rashguard Sunsuit Blue, Marine animals-12-18M

The UMELOK Baby Boy Rash Guard offers excellent comfort with its smooth polyester and spandex blend, making it soft, breathable, and quick-drying—perfect for keeping your little one comfortable during water play. The full front zipper allows for easy dressing and undressing, saving you time and hassle. With UPF 50+ sun protection, this swimsuit shields your baby’s skin from harmful UV rays, so you can feel confident during outdoor fun. Designed for various activities like swimming lessons, beach days, or water sports, this suit combines practicality with comfort for your child’s active summer adventures.

What We Like
Excellent sun protection
Soft, comfortable material
Easy diaper changes
Retains shape after washing
Full-length zipper design
What We Don't Like
Sizing runs slightly small
Zipper can bulge a bit
#TOP 8

upandfast Baby Boy Rash Guard Swimsuit

UAF510_14-Marine Animals-18-24m
Dark Green
18-24 Months
upandfast Baby Boy Rash Guard Swimsuit Cover
Baby Boy Swimsuit UPF 50+ Sun Protection, Baby Boys Rash Guard, Baby Beach Essentials, Toddler Bathing Suit Boy (Dark Green, 18-24 Months)

The upandfast Baby Rash Guard is made from a blend of polyester and spandex, ensuring a soft, breathable, and quick-drying fabric that keeps your little one comfortable all day. It offers UPF 50+ protection, blocking 98% of harmful UVA and UVB rays, so you can feel confident that your baby's sensitive skin is shielded from sunburn. The full front zipper makes dressing and diaper changes fast and hassle-free, even when the suit is wet. Plus, with its full-length sleeves and legs, this sunsuit offers complete coverage that helps protect your child from the sun without relying on sunscreens.

What We Like
Soft, lightweight material
Excellent sun protection
Easy on/off full zipper
Quick drying fabric
Comfortable and non-restrictive
What We Don't Like
May run slightly large
#TOP 9

uideazone Baby Boys Swimwear

Blue Striped
12-18 Months
uideazone Baby Boys Swimwear Cover
uideazone 12-18 Months Baby Boys One Piece Swimwear Blue Striped Surfing Beach Swimsuit Sun Protective Sunsuit

The uideazone Swimwear for Boys is designed with your child's comfort and safety in mind. Made from lightweight and breathable polyester, this swimsuit ensures quick drying and is gentle on sensitive skin. The convenient quarter zip with a chin guard makes dressing and diaper changes hassle-free. With long sleeves, it provides excellent sun protection, ideal for summer outings. The playful cartoon patterns and vibrant colors engage your child's imagination, making swimming more enjoyable. Whether at the beach or pool, this full-body swimsuit is a fantastic choice for any water activity.

What We Like
Full body sun protection
Easy to put on/off
Adorable design
Good value for price
True to size
What We Don't Like
No snaps for diaper changes
Moderate material quality
#TOP 10

NZRVAWS Toddler Boy One-Piece Swimsuit with Sun Hat

MI-26-91000
Sea World
12-18 Months
NZRVAWS Toddler Boy One-Piece Swimsuit with Sun Hat Cover
Toddler Swimsuit Boy 12-18 Months One-Piece Baby Boy Bathing Suit Swim Zip Rashguard Beige Shark Baby Boy'S Swimwear With Sun Hat

The NZRVAWS Toddler Swim Set is crafted from soft, stretchy fabric that dries quickly, keeping your little one comfortable both in and out of the water. Its fun sea-themed design, featuring sharks and other ocean creatures, adds a playful touch that your child will love. The full zipper makes it easy for you to dress and undress your toddler without any fuss. Plus, the included sun hat not only completes the look but also provides extra protection from the sun, making it perfect for beach days and pool parties.

What We Like
Adorable design
Soft lightweight material
Matching sun hat included
Easy zipper access
Great for beach or pool
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What should baby boys swim in?

Baby boys should wear specific swim nappies and a suitable swimsuit, trunks, or wetsuit. Regular diapers are not suitable for swimming as they can become waterlogged and are often not allowed in pools. Swim nappies and appropriate swimwear can be found in most big supermarkets or chemists.

2. What kind of bathing suit should a baby wear?

For baby boys, consider choosing a swimsuit made with UPF fabrics for added protection against UV rays. A long-sleeve one-piece swimsuit is a great option for babies aged 6-12 months, as it provides warmth and coverage.

3. What swimwear should a 1 year old wear?

For 1-year-olds, float suits, jackets, or vests are recommended in the pool. These swimwear options provide built-in buoyancy aids, helping babies feel more confident and maintain a natural horizontal position for swimming. Armbands are also commonly used, but swimwear with buoyancy aids can be a better choice.

4. Do babies need swim diapers under swimsuit?

Yes, babies still need to wear swim diapers even when wearing a swimsuit. Swim diapers are essential for maintaining hygiene in the pool while allowing babies to have a full range of movement. Make sure to choose swim diapers that are comfortable and fit well.

5. What is the best age for a baby to start swimming?

While it's possible to start teaching newborn babies to swim from birth, baby swimming lessons are more commonly offered from 3 months old or later. Starting swimming lessons early in life can help babies learn water safety and develop essential swimming skills.

6. Should babies wear rashguards or swimsuits?

To protect babies from the sun, it is recommended to dress them in sun-protective clothing, such as rash guards with long sleeves and even long pants. These provide coverage and help prevent sunburn. When shopping for swimsuits, prioritize options that cover a lot of your baby's skin.

7. When can babies wear sunscreen?

Sunscreen use should be minimized on babies younger than six months old. Instead, dress your baby in sun-protective clothing, like lightweight, long-sleeved shirts and pants, to shield them from the sun's rays. It's important to stay safe on hot days and protect your baby from excessive sun exposure.

8. Should 2 year old wear swim diaper?

In most cases, babies and kids below three or four years of age are required to wear a swim diaper when swimming or playing in a public pool. Swim diapers help contain solid waste and maintain hygiene in the pool, reducing the risk of contamination.

9. Can a 12 month old swim?

Babies can start learning to swim around the age of 1, although they won't master swimming skills until they're at least 4 years old. It's important to introduce water and swimming lessons early in life to help prevent drowning and promote water safety.

10. Does pee go through swim diapers?

Swim diapers are non-absorbent and designed to withstand water, but they do not contain pee. This means that the baby's urine will pass through the swim diaper into the water. It's important to change your baby into a regular diaper once they are out of the pool or water.

11. Do kids pee through swim diapers?

Swim diapers are not meant to absorb liquids like pee. They are designed to contain solids and prevent fecal contamination in public pools. While pee may pass through swim diapers into the water, they still serve the purpose of keeping solid waste inside, which is the primary concern for pool hygiene.

Editor's Notes

During our swimwear sunsuit for baby boys research, we found 48 swimwear sunsuit for baby boys products and shortlisted 10 quality products. We collected and analyzed 69,374 customer reviews through our big data system to write the swimwear sunsuits for baby boys list. We found that most customers choose swimwear sunsuits for baby boys with an average price of $19.27.

The swimwear sunsuits for baby boys are available for purchase. We have researched hundreds of brands and picked the top brands of swimwear sunsuits for baby boys, including Simple Joys by Carter's, SwimZip, Hnyenmcko, Xiaodriceee, Gerber. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Bonnie Salem Avatar

Bonnie Salem is a stay-at-home mother with two-year-old twins and has spent almost half of her life surrounded by baby products. As a mother and a professional copywriter, she has an insightful and unique eye for researching products suitable for infants. Bonnie Salem is an expert in health and nutrition who lives with her family in New Jersey. She has over 15 years of working experience in an institute of medicine after graduating from the University of Toronto. She is highly interested in personal health and wellness.

Swimwear Sunsuits for Baby Boys Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
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#TOP8
#TOP9
#TOP10
Brand Simple Joys by Carter's SwimZip Hnyenmcko Xiaodriceee Gerber upandfast UMELOK upandfast uideazone NZRVAWS
Department baby-boys baby-boys baby-boys baby-boys baby-boys baby-boys baby-boys baby-boys baby-boys baby-boys
Fabric type 83% Polyester, 17% Elastane 82% Nylon, 18% Spandex 82% Polyester, 18% Elastane Cotton Blend 84% Polyester, 16% Spandex 80% Nylon, 20% Spandex Polyester and spandex 82% Polyester, 18% Spandex 100% Polyester 82%Polyester ,18%Elastane
Care instructions Machine Wash Line Dry,Machine Wash Machine Wash Machine Wash Machine Wash Machine Wash Machine Wash Machine Wash Hand Wash Only Machine Wash
Origin Imported - Imported Imported Imported Imported Imported Imported Imported Imported
Closure type Pull On Zipper Zipper Pull On Zipper Zipper Zipper Zipper Zipper -
FTB Score
ftb score rating icon 9.9
ftb score rating icon 9.8
ftb score rating icon 9.6
ftb score rating icon 9.5
ftb score rating icon 9.3
ftb score rating icon 9.1
ftb score rating icon 9.1
ftb score rating icon 8.9
ftb score rating icon 8.9
ftb score rating icon 8.7
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