The Alpinestars Supertech R Motorcycle Boots are part of the racing and performance riding range from Alpinestars. They have gone through a rigorous program of upgrades to sharpen its performance features even further, offering enhanced comfort, protection and performance.Enhanced comfort, protection and performanceMain upper material Microfibre constructionOptimum abrasion resistance and high levels of flexibilityNew front flex area improves abrasion resistanceNew front flex area increases ventilation and airflowRear bellow in stretch microfibre for improved natural movementRedesigned Microfibre top gaiter with TPU over injectionNew synthetic microfibre panel on medial sideNew TPU shifter for increased protectionNew TPU shin plate for greater impact absorptionNew replaceable shin slider for additional abrasion resistanceNew TPU stretch panel design with zip for easy on / offHook and loop closure secures the puller zipMicro adjustable ratchet closure for optimised fitReplaceable co-inj