When to Replace a Ski Helmet

Key Takeaways

• Ski and snowboard helmets should be replaced after a crash or every  3-5 years, even if they look fine.

• EPS liners crush or fracture permanently on impact, while EPP liners may rebound but still compress and degrade over time.

• Not all damage is visible - but all  damage can compromise protection, making timely replacement essential.

• Warranties vary by brand but rarely cover crash damage.

• Helmet foam is susceptible to changes in temperature and humidity and degrades over time.

• An expert fit helps ensure your replacement helmet provides full protection and comfort.

Your helmet is your most important piece of protective gear on the mountain. But knowing when to replace a helmet isn’t always obvious. Even if your ski or snowboard helmet looks fine, the materials inside can lose their ability to absorb impact. This guide covers how helmets work, why invisible damage matters, and when it’s time to retire your old helmet for a safer ride.

Why Helmets Don’t Last Forever

Helmets are engineered with energy-absorbing liners that reduce the force of an impact. Most ski and snowboard helmets use expanded polystyrene (EPS) liners, but occasionally you’ll see helmets with expanded polypropylene (EPP) liners.

Definition: A helmet liner is a crushable foam layer inside your helmet that absorbs impact by deforming. Once compressed, it cannot fully recover, compromising  future protection.

• EPS (Expanded Polystyrene): Crushes permanently on impact. Any crash means you must replace the helmet.

• EPP (Expanded Polypropylene): Springs back after minor impacts but still degrades over time, and should be replaced after an impact.

• Shell + Fit System: Even without a crash, UV exposure, sweat, and temperature swings slowly break down plastics and foams.

When to Replace Your Helmet

You should replace your helmet immediately after a crash or if you notice cracks, dents, or loose padding. Even without visible damage, experts recommend replacing helmets every 3-5 years due to material degradation.

Signs it’s time to retire a helmet:

• Involved in any crash

• Cracks in shell or liner

• Dents in shell

• Fit system no longer secure

• Pads or straps deteriorating

• Over 5 years old

EPS vs. EPP Helmet Liner Comparison

Why Invisible Damage Matters

A helmet can look brand new yet have microscopic cracks or compressed foam that weakens its protection. Additionally, helmets are injection molded with some amount of moisture, but that moisture can dry out or evaporate over time – even in storage. That’s why relying only on appearance is risky. Retiring an old helmet ensures your next ride has the full safety technology intact.

Pro Tips from Craniologie Headucator

• Check your fit: A helmet should sit level, snug, and not shift when you shake your head. Visit our Expert Fit page for in-person help.

• Match helmet + goggles: A proper helmet and goggle fit improves vision and comfort.

• Mind the storage: Don’t leave helmets in hot or humid environments (including cars!) Extreme heat can damage liner materials, and your foam is sensitive to temperature swings. 

• Watch out for fire: Nothing beats sitting by a roaring fire after a long day of skiing. Drying out boots and gloves isn’t a problem, but keep your helmet (and goggles!) far away. We’ve seen many melted helmets over the years. 

FAQ

How often should I replace my ski helmet?
Most experts recommend every 3-5 years, or immediately after a crash, even if the helmet looks undamaged.

Does a damaged helmet still protect me?
A damaged helmet has reduced ability to absorb impact and should be retired. Replace it to maintain full protection.

What’s the difference between EPS and EPP liners?
EPS crushes once and must be replaced after impact. EPP rebounds from minor impacts but still ages and needs replacement after several years.

Will my helmet warranty cover a crash?
Most warranties do not cover crash damage. Some brands offer crash-replacement discounts, but coverage varies.

Can I use my old helmet for casual skiing?
If it’s beyond its recommended lifespan or has seen a crash, no. Helmets are single-use protection tools, not collectibles.

Do snowboard helmets last as long as ski helmets?
Yes. The replacement rules are the same across snow helmets. Replace after a crash or after 3-5 years of use.

Ready for a Replacement?

If your helmet is due for retirement, we’re here to help you find the right fit. Browse our ski helmets and snowboard helmets online, or book an expert fit at one of our Colorado stores. Our Headucators will measure, adjust, and match your helmet and goggles for all-day comfort and confidence on the slopes. Feel free to reach out for help here on the website - we’ve got Headucators standing by to answer your questions!