Expertly designed for off-road performance, the S-M3 Solid Helmet is Alpinestars' most versatile head protector, engineered for optimized impact management and lightweight comfort. Featuring an ECE 22.06 certified thermo-injected shell and a patented visor release system, it significantly reduces rotational forces during impacts. The comprehensive design includes a maximized 17-port ventilation system and integrated hydration tube channels for superior rider endurance.

Key features

Advanced Shell Construction: Thermo-injected shell with a specialized polymer blend of varying thicknesses, engineered for an optimal balance of lightweight performance and superior impact protection.
Maximized Ventilation: Equipped with 10 inlets and 7 exhaust ports to ensure high levels of heat transfer and consistent airflow during intense rides.
Rotational Acceleration Force Protection: Features a patented low-friction coating on the inner EPS liner that acts as a slip plane to reduce rotational forces during oblique impacts.
Patented Visor Release: Designed to release the visor with a precise, pre-determined amount of force during an impact, significantly reducing potential stress on the rider's neck.

Protection

Engineered inner and outer surfaces designed to minimize the effects of oblique impacts.
Multi-density 5-piece EPS inner liner provides targeted impact management and volume control.
Integrated hydration tube channels in cheek pads for seamless performance and convenience.
Eco-friendly comfort liner utilizes recycled materials to reduce environmental impact.
Customizable fit via interchangeable crown and cheek pads available in various thicknesses.

Construction

Shell thickness and structure optimized in the chin area to exceed standard homologation impact performance.
Inner and outer surfaces engineered to minimize the effects of oblique impacts.
Emergency Release System (ERS) with removable 3D contoured foam cheek pads for safe helmet removal.
25mm soft textile chin strap for a secure and comfortable fit.
Stainless steel D-rings for a reliable and tight closure.
Certified to ECE 22.06 and DOT standards for global use.