Alpinestars MM93 Austin Motorcycle Shoes Alpinestars Austin Riding Shoes based on many years of experience in research and development in motorsport at the highest level Light weight and best in class protective features inside as well as outside. Features: Marc Márquez MM93 Design Edition Upper made of ultra-lightweight , durable and abrasion-resistant microfiber. Reinforced TPU ankle expanded in the lower side part increases support and protection. TPR slider on the side toe provides increased flexibility and protection. New TPR heel design provides additional lateral support and security. Asymmetrical toe design provides protection in the misaligned area. Traditional lacing system for lightweight secure and comfortable fit. Side adjustable Velcro closure system with TPR strap for added security. Medial dual-density ankle protection between upper padded lining provides strategic protection and flexibility in key areas. Padded tongue and collar provide high levels of comfort and excellent fit around the ankle and instep. Internal toe and heel reinforcement located under the upper for a more ergonomic design. 3D mesh lining for high levels of breathability and anti-slip microsuede heel. Replaceable anatomical EVA footbed with Lycra lining on top. Extremely lightweight, specially compounded rubber outsole provides textured traction excellent grip. absorption and has a built-in support rod to increase sole rigidity. approved to EN 13634:2017 (safety footwear for motorcyclists).