How to Get the Smell Out of a BJJ Rash Guard

by Adrian Davis April 01, 2025

BJJ rash guards can develop stubborn odors due to sweat, bacteria, and frequent use. Proper care is essential to keep them smelling fresh and lasting longer. Here’s a step-by-step guide to eliminate odors from your rash guard:

1. Wash Immediately After Training:

Don't let your rash guard sit in your gym bag for hours. The longer sweat and bacteria stay trapped, the harder it is to remove the odor. Wash it as soon as possible after training.

2. Use Cold Water:

Wash your rash guard in cold water. Hot water can damage the fibers and lock in odors. Cold water is effective at removing bacteria without compromising fabric integrity.

3. Turn It Inside Out:

Turning your rash guard inside out before washing allows the detergent to reach the areas that collect the most sweat — the inside of the fabric.

4. Avoid Fabric Softener:

Fabric softeners can coat the material, trapping odors and reducing moisture-wicking properties. Instead, use a mild detergent designed for sportswear or activewear.

5. Add White Vinegar or Baking Soda:

White Vinegar: Add one cup of white vinegar to the rinse cycle to neutralize odors.
Baking Soda: Add half a cup of baking soda directly to the wash to help break down odors and bacteria.
Both are natural, safe, and effective odor neutralizers.

6. Use Specialized Sports Detergents:

If regular detergent isn't cutting it, consider a sports-specific detergent like HEX Performance, Nathan Power Wash, or OxiClean Odor Blasters. These are designed to break down odor-causing bacteria in technical fabrics.

7. Air Dry Thoroughly:

Avoid the dryer. High heat can damage the elasticity and trap odors. Hang your rash guard to air dry in a well-ventilated area or outdoors. Sunlight also helps kill bacteria and freshen up the fabric.

8. Deep Clean Periodically:

For deeply embedded odors, soak your rash guard in a solution of cold water and white vinegar (1:4 ratio) for an hour before washing. Alternatively, soak it in a mix of cold water and baking soda overnight.

9. Proper Storage:

Ensure your rash guard is completely dry before storing it. Store it in a clean, dry space to prevent mold, mildew, and lingering odors.

Final Tips:

Never leave your rash guard balled up in your gym bag.
Avoid using bleach, as it can damage the material.
If odor persists, try a second wash cycle with a specialized detergent.

By following these steps, your BJJ rash guard will stay fresh, odor-free, and ready for your next training session!