Shop boys’ zip rash guards with UPF 50+ UV sun protection

What is a rash guard?

A rash guard is a form-fitting athletic shirt that shields your skin from sunburns, chafing, and surfboard rash. It typically features long sleeves, but short-sleeve options exist for those who want more breathability and range of motion.

A rash guard takes its name from its ability to protect the body against friction. The tight-fitting swim shirt prevents two common water-activity issues—surf rash and sun rash.

Surf rash results from friction with surf wax, sand, and saltwater. Sun rash is an immunological reaction to UV light, causing red, raised bumps that are often painful and itchy. It can be a precursor for (or can accompany) sun poisoning.

Rash guards provide extra coverage and prevent uncomfortable irritation. Every rash guard in our collection is made with ultraviolet-protection-factor (UPF) 50+ fabric for additional defense against sun damage.

Our stylish and functional collection of boys rash guards

Our selection of boys’ zipper rash guards features stylish and practical options for young adventurers. You can choose between short and long-sleeve rash guards for different occasions. Our cool patterns and solid colors look great while keeping your boy safe in the sun.

The snug, cozy fit permits full motion for active toddlers and lively boys who love to explore. Each rash guard includes a convenient full-length zipper for quick dressing, with a protective flap to stop skin irritation.

The loose fit suits these rash guards for pool days, water park trips, or casual outings. Long-sleeved designs with finger loops add sun protection for hands.

UPF fabric shields young skin from harmful UV rays during water play. Some styles feature secure zippered pockets for small items. The adaptable design works for beach and street wear, so these rash guards are practical for all-day use.

Whether your boy favors short sleeves for coolness or long sleeves for extra protection, our collection has the right zipper rash guard to keep them at ease, safe, and fashionable.

We also offer rash guard swim shirt sets that pair with board shorts. These sets provide comprehensive sun protection for aquatic adventures. Matching combinations make it easy to create a coordinated look for your boy, whether he's at the beach or enjoying a day at the water park.

Our swim rash guard sets fit toddler boys and older children, and provide the same UV protection and stylish designs as our individual pieces. Whether your little guy likes dark or light colors, you can choose from a variety of colors to find the right fit.

When to wear a zipper rash guard

Zipper rash guards are great for most outdoor water adventures and beyond. Here are some examples:

Surfing: Rash guards protect against surfboard wax scrapes and discomfort from UV rays and salt water.
Outdoor swimming: During long periods in the sun, a rash guard provides top-notch defense against sunburns.
Snorkeling and diving: The tight fit allows full motion while shielding skin from stings and scrapes. Bright colors boost underwater visibility.
Other water sports: For kayaking, paddle boarding, and kitesurfing, world-class sun protection and scrape resistance make rash guards a smart pick.
Sun safety: Rash guards shield boys' skin so they can play outdoors without burns.
Outdoor exercise: The light, airy fabric keeps boys cool during open-air workouts.
Contact sports: Rash guards work well in grappling sports such as wrestling and judo. The tough material stops mat burns and skin problems from constant contact.
Daily tasks: Rash guards shield boys who help with gardening, car washing, and outdoor chores, giving parents peace of mind during summer fun.

Other swimwear from our boy’s collection

In our sun-protective swimwear collection for boys, you will also find:

Swim trunks: These shorts feature quick-dry fabric and UPF protection. They pair well with our rash guard swim shirts for complete coverage during water activities. You’ll find swim trunks in different lengths and with cool patterns for your boy's style preferences.
Euro shorties: These shorter swim shorts have a trendy European-inspired look. They provide freedom of movement for active boys and work great for beach volleyball or running along the shore. Euro shorties dry quickly and often feature fun, bold designs.
Swim pants: Full-length swim pants offer optimal sun protection for the legs. They're great for long beach days or boys with sensitive skin. These pants resist chlorine and salt water, so they can be used in both pools and the ocean.
Long swim shorts: A step between regular trunks and full pants, long swim shorts extend past the knee. They provide extra sun coverage and protection from cool water. These shorts work well for various water sports and casual wear.
Sunsuits: All-in-one outfits that are like a rash guard with swim leggings. Sunsuits have comprehensive sun coverage and are especially useful for toddler boys. They simplify dressing for the beach or pool while providing full UV protection.

Rash guards FAQ

Why do boys wear rash guards?

Boys wear rash guards for extra sun protection, skin irritation prevention, and comfort during water activities. They shield against UV rays, reduce chafing from surfboards and sand, and provide a little warmth in cool water. Rash guards also dry quickly, adding convenience for all-day beach or pool outings.

Do rash guards make you hot?

Rash guards don't typically cause overheating. They're made of lightweight, breathable fabrics that wick moisture away from the skin. Many rash guards actually keep you cooler by providing shade and evaporative cooling. For warmer conditions, short-sleeve options provide excellent ventilation while maintaining sun protection.

How effective are rash guards?

Rash guards are highly effective for their intended purposes. Quality rash guards with UPF 50+ fabric block up to 98% of harmful UV rays. They successfully prevent skin irritation from sand, surfboards, and other rough surfaces. Their snug fit and durable materials withstand frequent use in water, providing long-lasting protection.

How do I know my rash guard size?

To determine the rash guard size, check out the size chart. There you will also find useful tips on how to measure the body and everything you need to know to find the right fit for your boy.

Are rash guards compression shirts?

While rash guards and compression shirts share similarities, they're not identical. Rash guards prioritize sun protection and are water resistant, with a snug but not overly tight fit. Compression shirts focus on muscle support and improved circulation. Some rash guards incorporate compression features, but it's not their primary function.

What is the difference between a rash guard and a rash vest?

The terms "rash guard" and "rash vest" often refer to the same type of garment. Both protect against skin irritation and sun exposure during water activities. The main difference lies in regional terminology: "rash vest" is more common in Australia and the UK, while "rash guard" is prevalent in the US.

Do rash guards shrink in the water?

Rash guards do not typically shrink in the water. Rash guards are made of stretchy, synthetic materials, such as spandex and nylon, that maintain their shape and fit even when wet. The close-fitting design of rash guards is meant to prevent them from billowing or riding up in the water and losing their form.

Can you swim in a rash guard?

You can swim while wearing a rash guard. Their form-fitting, quick-drying construction makes rash guards good for your next water adventure.

How do rash guards protect kids' skin in cold water?

Rash guards for kids shield skin safely in cold water (and in direct sunlight, too). Their high-quality, saltwater-resistant fabric defends delicate skin from long-term damage. Darker colors and bold designs block UV rays effectively, lowering the risk of skin cancers. These comfortable swim shirts give complete sun protection for kids in many water settings.

Are rash guards good for children with sensitive skin?

Rash guards are great for children with sensitive skin. The high-quality fabric in UV protection swimwear feels gentle on delicate skin. Kids’ rash guards form a barrier against irritants in salt water and chlorine.

How do I pick the right color rash guard for maximum sun protection?

For maximum sun protection, look at rash guards in darker colors or bold designs. These options absorb more UV radiation than lighter shades. Our entire range of fun colors blocks UV rays because of the high-quality fabric. The UV protective properties exist in the material itself, so you can select based on your child's preference while keeping skin safe.

Zipper rash guards for boys