How to Care for Performance Socks (So They Last Longer)

A great pair of running socks is an investment. The right care routine keeps them performing at their best — maintaining cushioning, elasticity, and moisture-wicking properties run after run. Here's how to get the most out of your PAIRR socks.

Why Sock Care Matters

Performance running socks are engineered with technical fibres that do specific jobs: wicking moisture, providing cushioning, and maintaining a snug fit. Improper washing and drying can break down these fibres faster than normal wear, leading to socks that lose their shape, flatten out, or stop managing moisture effectively.

The good news: proper care is simple. It mostly comes down to avoiding a few common mistakes.

Washing Your Running Socks

Do:

• Wash after every run. Sweat, bacteria, and dirt degrade fibres over time if left to sit. Don't let worn socks sit in a gym bag for days.
• Turn socks inside out before washing. This cleans the side that contacts your skin most directly and helps preserve the outer surface.
• Use a gentle or sport-specific detergent. Standard detergents can leave residue that clogs moisture-wicking fibres. Sport wash detergents are formulated to rinse clean.
• Wash in cold or warm water (30–40°C). Hot water breaks down elastic fibres and can cause shrinkage.
• Use a mesh laundry bag. Protects socks from snagging on zippers or velcro in the wash.

Don't:

• Use fabric softener. Fabric softener coats fibres with a waxy residue that reduces moisture-wicking performance. Skip it entirely for technical running socks.
• Use bleach or harsh stain removers. These degrade elastic and technical fibres quickly.
• Wash with heavy items like jeans or towels. The friction from heavier fabrics can pill and wear down sock fibres.

Drying Your Running Socks

Best option: Air dry

Lay socks flat or hang them to air dry at room temperature. This is the gentlest method and extends the life of elastic fibres significantly. Most running socks dry quickly due to their moisture-wicking construction — usually within a few hours.

If you use a dryer:

• Use the lowest heat setting available.
• Remove socks while still slightly damp and let them finish air drying.
• Avoid high heat — it's the single biggest cause of elastic breakdown and sock shrinkage.

Never:

• Dry socks on a radiator or in direct sunlight for extended periods — concentrated heat degrades fibres just as dryer heat does.

Storage Tips

• Store flat or loosely folded. Avoid rolling socks tightly into balls — this stretches the cuff elastic over time.
• Keep pairs together. Match and store pairs immediately after drying so you're not hunting for matches on race morning.
• Store in a cool, dry place. Avoid damp drawers or bags where moisture can encourage odour-causing bacteria.

When to Replace Your Running Socks

Even with perfect care, running socks don't last forever. Here are the signs it's time for a new pair:

• The cushioning feels noticeably thinner underfoot
• The cuff no longer stays up during runs
• The heel or toe area is worn thin or has developed holes
• The sock feels loose or baggy compared to when it was new
• Persistent odour that doesn't wash out (bacteria has embedded in the fibres)

As a general guide, high-mileage runners (60+ km/week) should expect to replace running socks every 3–6 months. Lower-mileage runners can often get 6–12 months from a quality pair with proper care.

Our Running Socks

All PAIRR running socks are built with performance fibres designed to hold up to regular washing when cared for properly. The STRIDE SOCK, THE 400 SOCK, and SPICY SOCKS are all machine washable — just follow the guidelines above to keep them performing at their best for as long as possible.

And when it is time to replace them, you'll know exactly what you're looking for. Shop PAIRR running socks →