Alpinestars SM5 Corp Helmet, Lightweight Protection for MX Riders

Lightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic in two sizes.. The visor has been designed to direct air into the ports for enhanced airflow.. Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance.. The inner and outer surfaces are engineered to minimize the effects of oblique impacts.. Side shell couple with soft EPS foam prevents damage to collarbone in the event of a crash.. Soft textile chin strap is 26mm and is wider than certification requirements for optimal safety and rider comfort.. Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption. Emergency release system and removable cheek pads permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort.. Patented visor release system ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact.. Removable comfort liner with SILVERPLUS treated anti-bacterial fabrics for excellent moisture wicking, effectively drawing perspiration away from the skin.. Anti-microbial liner is removable and washable.. Stainless steel D-rings to ensure a tight and secure fit.. A size Medium weighs 1370g (DOT).. The SM5 helmet conforms to both DOT certification and ECE homologation for use worldwide.. Maximized ventilation and high levels of heat transfer exchange thanks to multi-air inlets and exhaust ports.

• Cotton/polyester blend
• Imported
• Lightweight outer shell made from impact resistant thermoplastic in three anatomical shell sizes, plus three individual EPS inner liner sizes with a combination of inner lining and cheek padding to offer 6 unique sizes and to ensure the best fitment and protection.
• An engineered raised area with padding effectively reduces the forces transmitted to the collarbone and a patented visor release system that ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact.
• Redesigned chin bar’s new profile, where the base area has been specifically sculpted to give a relief section, raised to clear the collarbone, with a new softer EPS liner which extends beyond the helmet shell itself, and is covered by a more flexible rubber compound providing a reduced chance of any sort of collarbone injury.
• Maximized ventilation and high levels of heat transfer exchange thanks to multi-air inlets and exhaust ports
• Complies with Federal Motor Vehicle Safety Standard 218 (FMVSS 218). The SM5 conforms to ECE R 22.06.