Best O'Neill Rash Guards for Boys of 2026

John Zimmer Avatar
John Zimmer
Last Updated: 3 Feb 2026

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Rash Guards by O'Neill are a must-have for boys who love spending time in the water. These high-quality swimwear tops provide excellent protection against the sun's harmful rays and irritation from sand and surf. Designed with comfort and durability in mind, O'Neill Rash Guards are made from quick-drying and stretchy materials, ensuring a snug fit that allows for freedom of movement. With a range of vibrant colours and stylish designs, these rash guards are not only practical but also make a fashion statement. Whether they're hitting the waves or simply enjoying a day at the beach, boys can stay protected and stylish with O'Neill Rash Guards.

At a Glance: Our Top Picks

O'Neill Toddler Reactor Back Zip Wetsuit Cover #TOP 1
O'Neill Toddler Reactor Back Zip Wetsuit
ftb score rating icon 9.9
O'NEILL Junior Reactor 2MM Back Zip Wetsuit Cover #TOP 2
O'NEILL Junior Reactor 2MM Back Zip Wetsuit
ftb score rating icon 9.8
O'Neill Toddler Reactor 2MM Back Zip Wetsuit Cover #TOP 3
O'Neill Toddler Reactor 2MM Back Zip Wetsuit
ftb score rating icon 9.6

Top 6 O'Neill Rash Guards for Boys

#TOP 1

O'Neill Toddler Reactor Back Zip Wetsuit

4867-FX6
Blue
O'Neill Toddler Reactor Back Zip Wetsuit Cover
O'NEILL Toddler Reactor 2mm Back Zip Shorty Wetsuit - Graphite Dayglo Ocean - UV Sun Protection and SPF Properties - Unisex - Age - 4Y

The O'Neill Toddler Reactor Wetsuit is designed for easy entry with its back zip feature, allowing you to slip in and out effortlessly. The strategic seam placement enhances comfort and flexibility, making it perfect for active little ones. With wind-proof Smoothskin, it provides excellent protection against chilly breezes while you are in or out of the water. The adjustable single seal collar ensures a snug fit, keeping water out and warmth in, so your child can enjoy their aquatic adventures without any discomfort.

What We Like
Easy to put on
Comfortable and flexible
Wind-proof protection
Snug collar fit
#TOP 2

O'NEILL Junior Reactor 2MM Back Zip Wetsuit

4867
Blue
O'NEILL Junior Reactor 2MM Back Zip Wetsuit Cover
O'NEILL Toddler Kids Youth Kids Junior Reactor 2MM Back Zip Shorty Wetsuit Ocean Graphite Red - Unisex

The O'NEILL Junior Reactor Wetsuit is designed with a back zip for easy entry, making it simple for you to get in and out without hassle. Its strategic seam placement ensures comfort and freedom of movement, reducing any irritation during wear. This wetsuit is versatile, offering high-performance layering pieces that can be worn alone or with accessories, keeping you protected against the elements. Whether you are in the water, taking a break, or just enjoying the surroundings, the O'NEILL Junior Reactor Wetsuit has you covered with reliable protection and comfort.

What We Like
Easy back zip entry
Comfortable seam placement
Versatile layering options
All-weather protection
#TOP 3

O'Neill Toddler Reactor 2MM Back Zip Wetsuit

4867
Blue
Age 1
O'Neill Toddler Reactor 2MM Back Zip Wetsuit Cover
O'Neill Toddler Kids Youth Kids Junior Reactor 2MM Back Zip Shorty Wetsuit Ocean Graphite Red - Unisex

The O'Neill Reactor Wetsuit is designed with a back zip for easy entry, making it simple for you to put on or take off, even when wet. The strategic seam placement enhances comfort and flexibility, allowing you to move freely while enjoying water activities. Its wind-proof Smoothskin material keeps you warm against chilly breezes, while the adjustable single seal collar ensures a snug fit to prevent water from entering. This combination of features makes the wetsuit ideal for all your aquatic adventures.

What We Like
Easy to put on
Flexible and comfortable design
Wind-proof material
Snug fit collar
#TOP 4

O'Neill Junior Reactor 2MM Back Zip Wetsuit

4867
Blue
O'Neill Junior Reactor 2MM Back Zip Wetsuit Cover
O'NEILL Toddler Kids Youth Kids Junior Reactor 2MM Back Zip Shorty Wetsuit Ocean Graphite Red - Unisex

The O'Neill Reactor Wetsuit features a back zip for easy entry, making it simple for you to put on and take off. Its strategic seam placement ensures comfort and flexibility while you're active in the water. Additionally, the wind-proof smoothskin helps keep you warm against breezy conditions, allowing for enjoyable sessions. The adjustable single seal collar provides a snug fit, preventing water from entering and ensuring you stay comfortable throughout your time in the water.

What We Like
Easy to put on
Comfortable and flexible
Wind-proof design
Snug collar fit
#TOP 5

O'NEILL Junior Reactor 2MM Back Zip Wetsuit

4867EJ9AGE2
Blue
Age 2
O'NEILL Junior Reactor 2MM Back Zip Wetsuit Cover
O'NEILL Toddler Kids Youth Kids Junior Reactor 2MM Back Zip Shorty Wetsuit Ocean Graphite Red - Unisex

The O'NEILL Junior Reactor Wetsuit is designed with a back zip, making it easy for you to get in and out quickly, which is especially handy for busy little ones. Its strategic seam placement ensures comfort and flexibility, so you can move freely without irritation. The wetsuit also features high-performance layering options that can be worn alone or combined with other accessories to keep you protected from the elements. Whether you're splashing in the water or relaxing between sessions, this wetsuit offers reliable protection and comfort.

What We Like
Easy entry back zip
Comfortable seam placement
Versatile layering options
Protection from elements
#TOP 6

O'Neill Youth Basic Skins Sun Shirt

3422-025-10
White
O'Neill Youth Basic Skins Sun Shirt Cover
O'Neill Youth Basic Skins Short Sleeve Sun Shirt - White, 10

The O'Neill Basic Skins Shirt is designed for active youth who enjoy outdoor activities. Made from a lightweight 6oz polyester and spandex blend, it offers a 4-way stretch for unrestricted movement. The UPF 50+ protection ensures you stay safe from harmful UV rays, allowing you to enjoy the sun without worry. Additionally, its quick-dry feature means you won't stay wet for long after swimming or sweating, keeping you comfortable throughout the day. The slim fit provides a close-to-body feel without being tight, making it ideal for sports or beach days.

What We Like
Excellent UV protection
Quick-drying fabric
Comfortable slim fit
Great for active youth
Buying Guide Image
Editor's Notes

During our O'Neill rash guard for boys research, we found 23 O'Neill rash guard for boys products and shortlisted 6 quality products. We collected and analyzed 2,585 customer reviews through our big data system to write the O'Neill rash guards for boys list. We found that most customers choose O'Neill rash guards for boys with an average price of £20.00.

The O'Neill rash guards for boys are available for purchase. The top 6 picks range in price from a low of £20.00 to a high of £41.00, find the one that fits your budget.

Written by
John Zimmer Avatar

John Zimmer is a truly professional writer on findthisbest.com. He has specialized in writing content a wide variety of fields for over a decade. Since 2011, he has been using his expertise and extensive experience to write content for online shopping guide websites. In addition to writing for findthisbest.com, he has appeared in publications such as The Spruce, Wirecutter and Bestbuy.