Rash Guards - All Our Rashguards

Rash Guards: A Must-Have for Combat Sports

Practical, technical, and stylish, rash guards have become essential for many athletes and outdoor enthusiasts. Combining style and functionality, these sportswear essentials cover a wide range of activities and offer significant benefits.

At Rashu, we’ve made it our mission to blend performance and style, catering to the needs of demanding athletes while allowing them to express their personality through unique designs. From intricate details to bold colors, patterns, and a variety of sizes—we’ve thought of everything, especially you!

What is a Rash Guard?

A rash guard is a high-performance sports garment designed to protect the skin from various elements, such as sun exposure, skin rashes, and irritation caused by friction. These form-fitting shirts are typically made from synthetic materials like polyester and spandex, offering compression benefits, quick-drying properties, and exceptional breathability.

Initially popular among surfers, rash guards quickly gained recognition in other sports, especially mixed martial arts (MMA), Brazilian Jiu-Jitsu (BJJ)—both Gi and No-Gi—as well as other contact sports like boxing.

On the mats, they provide effective protection against burns and friction-induced irritation, while allowing for maximum mobility. This perfect balance of comfort and technical performance makes them an absolute must-have for serious athletes.

And at Rashu, we specialize in these high-performance compression shirts, designed to take your training to the next level!

The Benefits of Our Rash Guards for Combat Sports

Most rash guards are made from a blend of polyester and spandex, a unique combination that provides elasticity and durability—two key factors for optimal performance.

At Rashu, we’ve chosen a premium blend of 82% polyester and 18% spandex, giving our rash guards an optimal fabric weight of 230 g/m² for superior quality.

In high-intensity disciplines like BJJ and MMA, every detail matters. Here’s why Rashu rash guards are designed to support your training and performance:

Enhanced Protection: Repeated friction and contact on the mats can cause burns and skin irritation. Our rash guards minimize these risks, keeping your skin protected—even during the toughest training sessions.
Optimized Hygiene: Featuring antimicrobial properties, our rash guards help prevent bad odors and reduce the risk of skin infections, which is crucial in contact sports.
Targeted Compression: Providing muscle support and improved blood circulation, our rash guards help with recovery while stabilizing muscles to reduce unnecessary vibrations.
Unique Style: Rashu offers a variety of modern, graphic, and bold designs. Whether you want to express your personality or simply stand out on the mats, there's a Rashu rash guard for you.

Rash guards are incredibly versatile, making them a great choice not only for Brazilian Jiu-Jitsu (BJJ) and MMA but also for surfing

While our focus is on disciplines like BJJ and MMA, Rashu rash guards are also perfect for other athletic activities. Their versatility offers protection and comfort across a range of sports:

Water Sports: Whether you're surfing, paddleboarding, or diving, our rash guards provide high UPF protection against the sun while preventing friction-related irritations.
Indoor Training: Their breathable fabric and moisture-wicking properties make them perfect for cross-training and fitness workouts.
Outdoor Activities: Whether you're hiking or spending extended time in the sun, our rash guards offer effective UV protection. They are particularly popular in South America, where they help combat intense sun exposure.

Key Features of a High-Quality Rash Guard

When choosing a rash guard, keep these essential features in mind to ensure top performance and comfort:

Quick-Drying – Prevents moisture build-up and enhances comfort.
Breathable – Ensures proper ventilation and helps regulate body temperature during training.
Compression Fit – Provides muscle support, reduces fatigue, and enhances performance.
Skin Protection – Minimizes the risk of rashes and irritations. Our long-sleeve rash guards offer even greater protection.
UV Protection – Essential for shielding against harmful sun exposure during outdoor activities.

At Rashu, we’ve combined all these features to bring you the best rash guards for performance, protection, and style—so you can train with confidence.

How to Choose the Perfect Rash Guard

Selecting the right compression top is crucial—it can completely transform your training or grappling experience. At Rashu, we’ve developed a unique expertise to help you make the right choice:

Size & Fit: A rash guard should fit snugly like a second skin without restricting movement. Our ergonomic cut adapts to all body types, and our detailed size guide ensures you get the perfect fit from the start.
Sleeve Type: We’ve intentionally chosen to offer only long sleeves—and for good reason. Experience has shown that this design provides the ultimate protection on the mats. Whether you train in BJJ or MMA, your arms deserve the same level of protection as the rest of your body.
Design & Style: Every athlete has their own identity, and at Rashu, we make sure to offer a variety of unique, high-quality designs for men and women. You can go for classic black or white, or stand out with Viking, Samurai, or Spartan-inspired artwork. And the best part? We have over 150 different models available on our website across multiple collections!

Tips to Maintain Your Rash Guard

To extend the lifespan of your rash guard, proper care is essential. These high-performance garments endure a lot of tension and wear, so following simple maintenance rules will help keep them in top condition—whether you're training in BJJ, boxing, grappling, or even water sports.

Here are some essential care tips:

Cold Wash Only: Always use cold water when washing your rash guard. Hot water can damage the elastic fibers.
Air Dry: Avoid the dryer. Hang your rash guard to air dry and preserve its elasticity.
No Fabric Softeners: Chemical agents in fabric softeners can reduce breathability and antimicrobial properties.
Proper Folding: Never wring out your rash guard. Instead, press it gently and lay it flat to dry.

Discover Rashu: The Ultimate Rash Guard Brand for BJJ & MMA

At Rashu, we have a mission: not to be just another rash guard brand. We are committed to providing gear that combines technology, style, and comfort. Whether you're a beginner or a seasoned athlete, our high-quality rash guards are designed to support your performance while helping you stand out with bold, eye-catching designs.

Step into the Rashu universe and explore a collection where every detail is crafted for combat sports enthusiasts. Protect your skin, enhance your performance, and make a statement with our exclusive designs.

Check out our latest arrivals to stay ahead of the game! Plus, enjoy FREE SHIPPING on orders over €80!

Your performance starts here—explore our rash guard collection now!

Have questions about rash guards? Check out our FAQ below.

What is a rash guard?

A rash guard is a technical garment designed to protect the skin from irritation while providing compression to improve blood circulation and aid muscle recovery. It’s highly valued in disciplines like Brazilian jiu-jitsu (BJJ) and MMA, as well as in water sports.

Which sports require a rash guard?

Rash guards are perfect for BJJ (No-Gi), MMA, and other combat sports like boxing. They’re also incredibly useful for surfing, paddleboarding, fitness, and any outdoor activity, thanks to their UV protection and superior comfort.

Why choose a rash guard over a regular t-shirt?

A rash guard offers much more than a standard t-shirt. It protects your skin from irritation, regulates body temperature, provides muscle support, dries quickly, and withstands intense training—all while ensuring greater durability.

How are Rashu rash guards different?

Rashu rash guards stand out with unique and diverse designs, ultra-soft and stretchable fabric, and reinforced stitching for maximum comfort. They also feature antimicrobial properties to ensure optimal hygiene. Additionally, we take pride in the exceptional quality of our products and our deliberate choice of long sleeves, providing the best protection on the mats.

How do I care for my Rashu rash guard?

To keep it in top condition, rinse your rash guard with clear water after each use, wash it in cold water, and let it air dry. Avoid using a dryer or fabric softener to preserve its technical features.

Are Rashu rash guards suitable for all body types?

Yes, our models, available in sizes XS to 3XL, are designed with an ergonomic and stretchy fabric to fit all body shapes perfectly. For the best fit, we recommend consulting our size chart to avoid any surprises.

Are Rashu Rash Guards Suitable for Cold Weather?

Absolutely. Their compression effect helps retain body heat while remaining breathable, making them perfect for outdoor training sessions or workouts in cooler environments.

Will My Rashu Rash Guard Lose Its Shape Over Time?

No. Our rash guards are designed to withstand intensive use, maintaining their shape and elasticity as long as proper care instructions are followed. That’s the key advantage over a regular t-shirt!