If you train Brazilian Jiu-Jitsu, you’ve probably noticed almost everyone on the mats wearing a rash guard. From No-Gi training to MMA cross-training, rash guards have become an essential piece of gear. But what exactly makes a good jiu-jitsu rash guard, and how do you pick the right one?
In this guide, we’ll cover:

- What a rash guard is and why you need one for BJJ
- Key features to look for in a BJJ rash guard
- How ranked rash guards work for competition
- Tips on finding the best rash guard for your training style
What Is a Rash Guard and Why Do Jiu-Jitsu Athletes Wear Them?

A rash guard is a compression shirt designed to protect your skin and regulate your body temperature during grappling. In Brazilian Jiu-Jitsu, rash guards serve multiple purposes:
- Reduce mat burns and skin infections
- Provide muscle compression for better circulation
- Wick away sweat to keep you comfortable
- Help identify rank colors in competition
Whether you train Gi or No-Gi, a BJJ rash guard is essential for performance and hygiene.
Features of the Best Rash Guards for Jiu-Jitsu
Not all rash guards are created equal. Here’s what to look for when shopping:
- Material – The best rash guards use a polyester-spandex blend for durability and stretch. This keeps the rash guard flexible without tearing. (Shameless plug: All ButterflyX Gear is made this way!)
- Stitching – Flatlock stitching prevents chafing and ensures long-lasting wear during intense rolls.
- Fit – A good rash guard should fit snug like a second skin. Too loose, and it will shift during training. Too tight, and you’ll lose mobility.
- Anti-Slip Features – Some jiu-jitsu rash guards (like ours) come with rubber grips at the waist to keep them from riding up.
- Style & Rank – Rash guards often feature ranked color options (white, blue, purple, brown, black) for IBJJF competition, as well as unique designs to express your style on the mats.
Ranked Rash Guards and IBJJF Competition Rules
If you plan on competing IBJJF, you’ll need a ranked rash guard. The IBJJF requires at least 10% of the rash guard to display your belt color. For example, a purple belt competitor must wear a purple rash guard or one with purple accents.
Training rash guards can be any style, but if you want to compete, it’s smart to invest in a ranked option.
How to Choose the Right Rash Guard for Your Training
- Here are a few quick tips for picking the right gear:
- Train often? Buy at least 2–3 rash guards so you’re not washing daily.
- Competing? Get a ranked rash guard approved for IBJJF rules.
- Prefer long sessions? Go with long-sleeve rash guards for added skin protection.
- Like mobility? Short-sleeve rash guards feel lighter and cooler.
Where to Find High-Quality Jiu-Jitsu Rash Guards
At ButterflyX, we design rash guards built for the grind of BJJ training. Our rash guards feature durable stitching, moisture-wicking material, and bold designs that stand out on the mats. Whether you’re looking for a No-Gi rash guard, a ranked rash guard for IBJJF competitions, or a unique design that shows your style, you’ll find it in our collection.
Shop Jiu-Jitsu Rash Guards Here → https://bfxgear.com/collections/nogi

Final Thoughts
A rashguard isn’t just another piece of gear—it’s an investment in your training comfort, safety, and style. By choosing the right BJJ rashguard, you’ll protect your skin, improve your performance, and look sharp while you roll.