Rashguard Care Guide: How to Wash and Maintain Your BJJ Compression Gear
Why Proper Rashguard Care Matters
Your BJJ rashguard is more than just training apparel—it's a critical piece of protective equipment that shields your skin from mat burn, bacteria, and friction during intense grappling sessions. Whether you invested in premium modest rashguards or standard compression tops, proper care ensures they maintain their elasticity, compression, antimicrobial properties, and appearance for years of training.
This comprehensive guide covers everything you need to know about washing, drying, and maintaining your rashguards to maximize their lifespan and performance.
Understanding Rashguard Fabric Technology
Modern rashguards use advanced synthetic fabrics designed for athletic performance:
Common Fabric Compositions
- Polyester/Spandex blend: Most common (typically 80-90% polyester, 10-20% spandex)
- Nylon/Spandex blend: Softer feel, excellent stretch recovery
- Moisture-wicking technology: Pulls sweat away from skin
- Antimicrobial treatments: Prevents bacteria and odor buildup
- UV protection: Many rashguards offer SPF 50+ protection
These technical fabrics require specific care to maintain their performance properties.
How to Wash Your Rashguard Properly
Immediate Post-Training Care
Never leave your rashguard in your gym bag. This is the #1 mistake that leads to permanent odor and bacteria buildup.
Immediately after training:
- Remove rashguard from gym bag as soon as you get home
- Rinse with cold water if you can't wash immediately
- Hang to air out until you can properly wash
- Never let it sit damp in a closed bag overnight
Machine Washing Method (Recommended)
Step-by-step process:
- Turn inside out: Protects graphics and reduces pilling
- Use cold water only: Hot water breaks down elastic fibers and fades colors
- Select gentle/delicate cycle: Reduces wear on fabric
- Use mild detergent: Avoid harsh chemicals and fabric softeners
- Wash with similar items: Other athletic wear, not heavy jeans or items with zippers
- Use a mesh laundry bag: Extra protection from agitation and snagging
Hand Washing Method
For premium or delicate rashguards:
- Fill sink or basin with cold water
- Add small amount of mild detergent
- Submerge rashguard and gently agitate for 2-3 minutes
- Let soak for 10-15 minutes
- Rinse thoroughly with cold water until all soap is removed
- Gently squeeze out excess water (don't wring or twist)
Drying Your Rashguard: Critical Guidelines
The Golden Rule: Never Use a Dryer
Heat is the enemy of compression fabrics:
- Breaks down spandex/elastane fibers
- Causes shrinkage and loss of stretch
- Fades colors and graphics
- Damages antimicrobial treatments
- Significantly shortens rashguard lifespan
Proper Air Drying Method
Best practices:
- Hang on a drying rack or clothesline
- Avoid direct sunlight (can fade colors and degrade fabric)
- Ensure good air circulation
- Hang by shoulders or lay flat—don't hang by hem (causes stretching)
- Allow 4-8 hours for complete drying
- Ensure completely dry before storing
Quick-dry tip: Gently press rashguard between dry towels to remove excess water before hanging—speeds up drying time.
Detergent and Cleaning Product Guidelines
What to Use
- Mild, sport-specific detergents: Designed for technical fabrics
- Free and clear detergents: No dyes or fragrances that can irritate skin
- Small amounts: Less is more with technical fabrics
- Cold water formulas: Optimized for cold water washing
What to Avoid
- Fabric softeners: Coat fibers and reduce moisture-wicking ability
- Bleach: Damages fabric and fades colors
- Harsh detergents: Break down elastic fibers
- Excessive detergent: Leaves residue that attracts dirt and bacteria
Dealing with Odor Issues
Even with proper washing, rashguards can develop persistent odors. Here's how to combat them:
Prevention Strategies
- Wash immediately after every use
- Never let rashguards sit damp
- Rotate between multiple rashguards
- Air out completely between washes
- Store in well-ventilated area
Odor Removal Techniques
White vinegar soak:
- Add 1/2 cup white vinegar to wash cycle
- Or soak in 1:4 vinegar-to-water solution for 30 minutes before washing
- Vinegar neutralizes odors and kills bacteria
- Rinse thoroughly
Baking soda treatment:
- Add 1/4 cup baking soda to wash cycle
- Natural deodorizer and gentle cleaner
- Safe for all rashguard fabrics
Sport-specific odor eliminators:
- Products designed for athletic gear
- Follow product instructions carefully
- Look for enzyme-based formulas
Freezer method:
- Place clean, dry rashguard in sealed bag
- Freeze overnight
- Kills odor-causing bacteria
- Not a substitute for washing, but helps between washes
Maintaining Compression and Elasticity
The compression fit is what makes rashguards effective. Maintain it by:
Do's
- Always wash in cold water
- Air dry only
- Store flat or loosely folded
- Rotate between multiple rashguards
- Put on and remove carefully (don't yank or pull excessively)
Don'ts
- Never use hot water or dryer
- Don't wring or twist when wet
- Avoid hanging by hem when wet (stretches fabric)
- Don't leave in direct sunlight for extended periods
- Never iron (heat damages elastic fibers)
Protecting Graphics and Sublimation Prints
Many rashguards feature elaborate designs and graphics:
Preservation Tips
- Turn inside out before washing: Protects prints from abrasion
- Avoid rough surfaces: When hanging to dry
- Never iron directly on graphics: Heat damages prints
- Wash with similar colors: Prevents color transfer
- Use gentle cycle: Reduces friction and wear
Sublimation vs. Screen Printing
Sublimation prints (most common in quality rashguards):
- Dye is infused into fabric
- More durable and fade-resistant
- Won't crack or peel
- Still benefits from gentle care
Screen prints:
- Ink sits on top of fabric
- More prone to cracking and peeling
- Requires extra gentle care
- Turn inside out for washing and drying
Storage Best Practices
Proper storage extends rashguard life between uses:
Short-Term Storage (Between Training Sessions)
- Ensure completely dry before storing
- Fold loosely or hang on hanger
- Store in well-ventilated area
- Keep away from direct sunlight
- Separate from dirty gear
Long-Term Storage (Off-Season)
- Wash thoroughly before storing
- Ensure 100% dry
- Fold and place in breathable storage container
- Avoid plastic bags (trap moisture)
- Store in cool, dry place
- Check periodically for moisture or odor
Special Care for Modest Rashguards
Full-coverage modest rashguards require the same care with additional considerations:
High Necklines and Long Sleeves
- Extra fabric means longer drying time—plan accordingly
- Ensure neck area is completely dry before storing
- May need to reshape neckline while drying
- Check seams for wear more frequently
Layering Considerations
- If wearing multiple layers, wash all pieces after each use
- Moisture can transfer between layers
- Ensure all pieces dry completely
Washing Frequency Guidelines
After Every Use (Non-Negotiable)
- Any training session involving sweat
- After sparring or rolling
- Competition use
- Any time rashguard becomes damp with sweat
Exceptions
- If you only wore it for light drilling without sweating, you might air it out and wear once more
- Use your judgment—when in doubt, wash it
Important: Bacteria multiply rapidly in damp athletic wear. Washing after every use prevents skin infections, ringworm, staph, and other mat-borne illnesses.
Common Rashguard Care Mistakes
- Using hot water: Single biggest cause of rashguard damage
- Machine drying: Destroys elasticity and causes shrinkage
- Leaving in gym bag: Creates permanent odor and bacteria issues
- Using fabric softener: Ruins moisture-wicking properties
- Washing with rough items: Causes pilling and snagging
- Over-stretching when wet: Fabric is most vulnerable when wet
- Ignoring care labels: Manufacturer instructions are there for a reason
When to Replace Your Rashguard
Even with perfect care, rashguards eventually wear out. Replace when you notice:
Performance Issues
- Loss of compression (fabric feels loose or baggy)
- Reduced elasticity (doesn't snap back to shape)
- Persistent odor despite proper washing
- Moisture-wicking no longer effective
Physical Damage
- Holes or tears in fabric
- Seams coming apart
- Significant pilling or thinning
- Fading that makes graphics unclear
- Stretched out neckline or cuffs
Hygiene Concerns
- Permanent discoloration from bacteria
- Odor that won't wash out
- Visible mold or mildew (rare but possible)
Typical lifespan: With proper care, quality rashguards last 1-3 years of regular training (3-5 times per week).
Travel Care Tips
Maintaining rashguards while traveling for seminars or competitions:
- Pack in breathable bag, not sealed plastic
- Bring travel-size sport detergent
- Rinse in hotel sink immediately after use
- Hang to dry in bathroom with fan on
- Never pack damp rashguards for return trip
- Consider bringing extra rashguards for multi-day events
Environmental Considerations
Care for your rashguards while being environmentally conscious:
- Cold water washing: Saves energy
- Air drying: No electricity needed
- Eco-friendly detergents: Better for environment and your skin
- Extend lifespan: Proper care means less waste
- Repair when possible: Small tears can be sewn rather than replacing entire rashguard
Conclusion: Invest in Care, Extend Your Gear
Your rashguards protect you during training—return the favor with proper care. The few extra minutes spent washing correctly and air drying will save you money in the long run and ensure your rashguards perform at their best every time you step on the mats.
Remember the golden rules: cold water wash, air dry only, wash after every use, and never use fabric softener or bleach. Follow these guidelines, and your rashguards will serve you well throughout your martial arts journey.
Quality rashguards are an investment in your training. Treat them right, and they'll protect your skin, regulate your temperature, and keep you comfortable through countless rolls and rounds.