Alpinestars SM3 Solid Helmet | Matte Black MX & Enduro Helmet

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