The Alpinestars Supertech family of helmets was engineered to be the most advanced, protective, and performance-enhancing helmets for riders globally. The S-M10 offers an optimal balance of ventilation and comfort, achieving the lightest possible weight without compromising on any other aspect. Its design features a smooth, attractive, aerodynamic profile, streamlined and free of external channels that could act as stress points during impact or compromise the helmet's structural integrity. The surface curvature is designed to reduce friction upon impact, allowing for deflection and efficient energy transfer, thereby protecting the rider's head from direct force and reducing the risk of injury to the neck and spine. Key Features: * Lightweight: 1260g (Size Medium), 1310g (with side padding), 1370g (with visor extension) * Closure: Double D * Certification: ECE 22.06