Replacing a ski helmet every three years is often recommended for the following reasons:
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Material Degradation: The materials used in helmets, such as expanded polystyrene (EPS) foam and plastic shells, degrade over time due to exposure to sunlight (UV rays), temperature changes, moisture, and general wear and tear. This can compromise the helmet's ability to absorb impacts effectively.
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Technological Advancements: Helmet technology improves over time, with new features and materials enhancing safety. Replacing a helmet ensures you benefit from the latest innovations, such as Multi-directional Impact Protection System (MIPS) or improved aerodynamics.
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Unseen Damage: Even if a ski helmet hasn't been visibly damaged, repeated minor impacts or just handling over time can reduce its protective capabilities. These wear-and-tear issues are not always visible but can significantly affect performance.
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Crash History: If the ski helmet has been involved in a crash or a significant impact, it should be replaced immediately, regardless of age, as its structural integrity may be compromised.
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Industry Recommendations: Manufacturers and safety organizations often recommend replacement every 3–5 years to account for material degradation and ensure continued compliance with safety standards.
By replacing your ski helmet regularly, you maintain optimal safety on the slopes.