How to Wash and Care for Your BJJ & MMA Rashguards (Complete Guide)

Why Rashguards Are Essential for BJJ and MMA

BJJ and MMA rashguards are more than just training shirts—they’re an essential part of every grappler’s gear. A high-quality rashguard protects your skin from mat burns, irritation, and bacterial infections. In many academies, they’re even part of the required uniform for jiu-jitsu, MMA, and no-gi training.

Modern rashguards feature compression fits, sweat-wicking fabrics, anti-odor technology, and antimicrobial layers. But these benefits won’t last if you don’t care for them properly. With the right washing and drying routine, you’ll maximize both performance and durability.

How to Wash Rashguards Without Damaging Them

Learning how to wash rashguards the right way is essential if you want them to last longer, stay comfortable, and continue protecting your skin. Without proper care, elasticity weakens, fabrics lose breathability, and odors build up.

Step-by-step washing tips:

• Wash in cold water to protect elasticity.

• Turn your rashguard inside out before washing to reduce friction.

• Use a gentle wash cycle instead of heavy-duty settings.

How Often Should You Wash a Rashguard?

Your rashguard should be washed after every training session. Skipping washes lets sweat, bacteria, and odor settle into the fabric, which shortens its lifespan and increases the risk of skin infections.

Wash immediately after class when possible.

If you can’t wash right away, hang it to air dry until you can.

Never leave a sweaty rashguard in your gym bag overnight.

What Detergent Should You Use on a Rash Guard?

The best detergent for rashguards is a mild, gentle detergent that cleans without damaging the fabric.

• Choose detergents labeled for delicates or sportswear.

• Avoid bleach and harsh chemicals that break down fibers.

• Skip fabric softeners since they clog breathability.

• For stubborn odors, add a small amount of white vinegar.

Should You Dry Rashguards in the Dryer?

Always avoid dryers. Heat damages elasticity and weakens fibers.

• Hang dry your rashguard in a well-ventilated area.

• Keep it out of direct sunlight, which can fade colors and graphics.