ALPINESTARS SM3 Helmet - Solid Matte Black 8300326-110

Optimized for MX, Enduro, and Offroad use, the SM3 Helmet delivers a perfect blend of performance, protection, and comfort. Engineered with a thermo-injected shell incorporating a polymer blend of varying thickness, this helmet provides an optimal combination of impact protection and light weight. The outer shell is constructed from impact-resistant thermoplastic, paired with an inner shell of composite fiber and a 6-piece multi-density EPS liner to effectively manage impact energy.

Key Features

• Thermo-injected shell with varying thickness for optimized protection and light weight.
• Inner shell constructed with composite fiber between the outer shell and EPS liner for maximum impact defense.
• Fit can be tailored to the rider's head via adjustable crown and cheek pads.
• Maximized ventilation with ten inlets and seven exhaust ports for high levels of heat transfer.
• Visor designed to direct airflow into ports and features a release system to reduce neck forces during an impact.
• Comfort liner constructed using recycled materials for a lower carbon footprint.
• Integrated hydration tube channels in the cheek pads for convenience during long rides.

Construction

• 6-piece EPS liner with five specific densities ensures the correct density in the correct area for enhanced absorption.
• Polished inner EPS liner with a low-friction coating reduces rotational acceleration forces from oblique impacts.
• Inner and outer surfaces engineered to minimize the effects of oblique impacts.
• Soft textile 25 mm chin strap ensures optimal safety and rider comfort.

Protection

• Equipped with an Emergency Release System for safe and easy removal of 3D contoured cheek pads while the helmet is on.
• Chin area optimized for superior impact performance.
• Stainless steel D-rings ensure a tight, secure, and reliable fit.