How to Wash Sportswear Properly to Make It Last Longer 2026

Learning how to wash sportswear properly is essential to keep your activewear fresh, functional, and long-lasting. As a running and cycling journalist, I spend a lot of time in sportswear. Lycra is my leg coverage of choice, polyester or merino wool my base layer, and I reach for technical materials like Gore-Tex if the weather isn’t playing ball. A near-daily workout schedule means my washing machine’s sportswear setting takes a hammering to avoid having a laundry basket overflowing with sweaty, salty, sour-scented clothes. But even then, tops can develop hard-to-shift smells in sweat-prone areas, synthetic materials can start to bobble and lose shape, and my sportswear occasionally gets a foamy detergent residue that hasn’t been properly rinsed out, particularly during wet or intensive training sessions. To find out how to resolve my washing woes, I’ve consulted experts on more sustainable ways to care for your sportswear and how to dispose of kit when it’s ready to go to the big gym in the sky.

How to Make Your Sportswear Last Longer

Sort It Straight Away

“Don’t leave your dirty exercise clothes in the corner of your room or wardrobe, where they can stay damp and develop mould. You may not notice it, especially with darker sportswear, as mould spores aren’t visible until they grow to about half a centimetre in size,” says David Lambert, managing director at the laundry service Laundry Republic. “If you’re unable to wash your sportswear straight away, keep it aired out as much as possible.”

Wash at the Right Temperature

Most sportswear benefits from a cold wash (30°C or lower) to protect elastic fibers and prevent shrinking. However, if you’ve been sweating heavily or the garment is particularly odorous, a warm wash (40°C) may be necessary to kill bacteria. Always check the care label first.

Use the Correct Detergent

Regular detergents can leave residue that traps odors and damages technical fabrics. Use a mild, liquid detergent free from bleach and fabric softeners. For high-performance gear, consider a sport-specific detergent that targets bacteria and sweat.

Avoid Fabric Softener and Dryer Sheets

Fabric softeners coat fibers, reducing moisture-wicking properties and breathability. They also trap odors. Skip them entirely and opt for a half-cup of white vinegar in the rinse cycle to naturally soften and deodorize.

Turn Inside Out and Use Mesh Bags

Turning garments inside out protects the outer surface from friction and pilling. Place delicate items like sports bras and cycling shorts in a mesh laundry bag to prevent snags and stretching.

Air Dry When Possible

High heat from dryers breaks down elastane and can cause shrinkage. Hang or lay flat to dry in a well-ventilated area, away from direct sunlight. If you must use a dryer, choose the lowest heat setting.

Comparison of Washing Methods for Sportswear

Key Takeaways for Sportswear Care

• Wash immediately after use to prevent mold and permanent odors.
• Use cold water and a gentle, sport-specific detergent.
• Avoid fabric softeners and dryer sheets.
• Air dry whenever possible to maintain shape and elasticity.
• Turn inside out and use mesh bags for delicates.

FAQ

How often should I wash my sportswear?

After every workout, especially if you’ve sweat heavily. Bacteria thrive in damp, sweaty fabrics, leading to odors and potential skin issues.

Can I use regular detergent on sportswear?

It’s not recommended. Regular detergents may contain additives that clog technical fabrics. Use a mild liquid detergent or one designed for activewear.

What should I do with worn-out sportswear?

Don’t just throw it away. Many brands and retailers offer recycling programs for old activewear. Alternatively, donate clean, gently used items to charity shops.

How can I remove stubborn odors from sportswear?

Soak the garment in a mixture of cold water and white vinegar (1:4 ratio) for 30 minutes before washing. For persistent smells, use an oxygen-based bleach (like OxiClean) safe for colors.

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