Alpinestars SM3 Solid Helmet – Matte Black Built for MX, enduro, and off-road riders who demand serious protection without sacrificing comfort or airflow, the Alpinestars SM3 Solid Helmet delivers a premium blend of lightweight construction, advanced impact management, and race-proven ventilation. Available in Matte Black, sizes XS–2XL. Shell & Construction Thermo-injected thermoplastic outer shell with varied-thickness polymer blend for optimized impact protection and reduced weight Composite fiber inner shell assembled between the outer shell and EPS liner for maximum impact absorption 6-piece, 5-density EPS liner engineered to manage volume and impact performance in the right areas Polished inner EPS liner with low-friction coating to reduce rotational acceleration forces from oblique impacts Ventilation 10 intake ports + 7 exhaust ports for maximized airflow and heat transfer Visor designed to direct air into intake ports for enhanced cooling performance Comfort & Fit Adjustable crown and cheek pads for a tailored, personalized fit Comfort liner constructed from recycled materials for a lower carbon footprint Integrated hydration tube channels in cheek pads for on-the-go convenience Soft 25mm textile chin strap for optimal safety and comfort Protection & Safety Emergency Release System with removable cheek pads for safe helmet removal after an incident Chin area optimized for superior impact performance Visor release system designed to release at a pre-determined force to reduce neck stress during impacts Stainless steel D-rings for a tight, secure closure Specifications Brand: Alpinestars Color: Matte Black Sizes: XS, S, M, L, XL, 2XL Intended Use: Motocross / Enduro / Off-Road Weight: ~5 lbs Price: $229.95
