S-M3 Radium Helmet ECE 22.06

• Advanced Shell Construction: Features a thermo-injected shell with a specialized polymer blend and engineered thickness to provide the optimal balance of lightweight performance and impact protection (1430g ECE / 1460g DOT).
• Maximized Ventilation: Equipped with 10 intake and seven exhaust ports to ensure high levels of heat transfer and airflow during intense riding.
• Rotational Acceleration Force Protection: Utilizes a patented low-friction coating on the inner EPS liner that acts as a slip plane to reduce rotational forces during oblique impacts, mimicking the brain's natural defenses.
• Patented Visor Release: Designed to release the visor with a pre-determined force during an impact, effectively reducing stress and potential injury to the rider's neck.

• Engineered to meet Alpinestars' rigorous in-house standards for chin bar impact performance, exceeding basic homologation requirements.
• Optimized shell thickness and structure specifically designed for superior impact protection in the chin area.
• Engineered inner and outer surfaces designed to minimize the physical effects of oblique impacts.
• Equipped with an Emergency Release System and removable 3D contoured foam cheek pads for safe and easy helmet removal by trackside medical staff.
• Features a 25mm soft textile chin strap for maximum security and rider comfort.
• Stainless steel D-rings ensure a consistent, tight, and secure fitment.
• Fully certified to ECE 22.06 homologation and DOT standards for global use.

• Shell thickness and structure optimized in the chin area for superior impact performance, exceeding Alpinestars' internal testing standards.
• Inner and outer surfaces engineered to minimize the effects of oblique impacts.
• Equipped with an Emergency Release System and removable 3D contoured foam cheek pads for safe helmet removal.
• Soft textile 25mm chin strap for optimal safety and rider comfort.
• Stainless steel D-rings for a tight and secure fit.
• Conforms to DOT certification and ECE 22.06 homologation for worldwide use.