How often should I replace my senior ski helmet?

Replace your helmet after any significant impact, even if no damage is visible — the EPS foam may be compromised. Otherwise, replace every 3-5 years regardless of condition, as UV exposure and material aging gradually reduce impact protection. If you ski 30+ days per year, consider replacement closer to every 3 years. If you ski fewer than 10 days per year, 5 years is acceptable. Always replace if the shell shows cracks, the MIPS layer doesn't move freely, or the fit system no longer holds adjustment.