The Alpinestars SM5 Compass MX Helmet, with its extensive development and testing over five years, represents a significant advancement in motocross helmet technology. Designed to offer optimal protection and comfort, this helmet features a thermo-injected shell that incorporates a special polymer blend. This blend is enhanced by varying degrees of thickness to deliver an optimal combination of impact protection and light weight. The helmet's construction includes a five-density EPS liner to ensure the correct density in the correct areas for enhanced impact absorption.

Key features of the SM5 Compass Helmet include an advanced impact-resistant thermoplastic outer shell available in two sizes, engineered surfaces to minimize the effects of oblique impacts, and a patented visor release system. This system ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact. Additionally, the helmet boasts maximized ventilation, with multi-air inlets and exhaust ports for high levels of heat transfer and air exchange, enhancing the rider's comfort during use .

This helmet comes in sizes ranging from XS to XL and in various color combinations like Black/Orange fluorescent Matte and Black/Yellow fluorescent Matte, among others. This makes the SM5 Compass not just a highly functional piece of safety equipment but also a stylish one that can match different riders' tastes and preferences .