The Alpinestars Supertech R Boot is Alpinestars' definitive racing boot, worn by numerous champions. It has undergone extensive upgrades to enhance its performance features, incorporating innovations from top-tier racing feedback. Key updates include a redesigned front flex area, rear bellow, top gaiter, shifter and shin plate, a new shin slider, and an improved inner bootie, all contributing to class-leading comfort, protection, and performance. * Main upper material is microfiber for excellent abrasion resistance and flexibility. * New front flex area offers improved impact abrasion resistance while allowing natural movement. * Redesigned top gaiter in microfiber with TPU over-injection for enhanced grip. * Ergonomic external TPU shin protector designed to distribute and dissipate impact energy. * Shin plate features a new micrometric ratchet closure for a secure and precise fit. * Innovative microfiber medial panel provides excellent grip and feel against the motorcycle, with abrasion and heat protection. * Lightweight rubber compound sole designed for excellent grip and feel. * New flexible and stretchable TPU side panel for easy boot closure and a great fit. * TPU zip reduces friction in case of impact. * Velcro tab secures the zip puller, keeping it flat and safe. * Interchangeable co-injected TPU/Aluminum toe slider with a new screw-fixing system for improved feel and abrasion resistance. * Flexible and lightweight accordion microfiber on the Achilles tendon for natural movement and support. * Upper gaiter follows the leg silhouette, made of premium synthetic leather reinforced with PU. * Lightweight flex zone for precise gear shifting feel. * On the vented version: strategic ventilation on the heel and TPU on the shin to channel air through the boot. * Separate internal biomechanical ankle brace works with the external boot structure for complete freedom of movement for the foot, ankle, and leg. * Interchangeable polymer heel plate slider protects against impact and reduces friction. * External entry features an accordion elastic panel for a snug fit and easy on/off. * Supertech R Boots are CE certified according to EN 13634:2010. * Available in international sizes 39-48. * The removable liner is washable, with a Coolmax fabric and anti-bacterial yarn interior for lasting freshness and quick drying. * The helmet features washable TPE surfaces for easy maintenance and durability. * Additional cheek pads offer increased thickness (+5mm) for a more precise fit (sold separately). * Color options: Red White Glossy, Black Matt Carbon White. * Accessories included with the Supertech M10: Replacement visor, racing helmet bag. * Supertech M10 Certifications: Supertech M10 helmet versions comply with DOT certification and ECE approval for international use.