Flexible accordion microfiber stretch at Achilles allows natural movement. Top gaiter follows leg contour and is made of flexible high-grade synthetic leather reinforced with PU for maintaining shape. Full length microfiber panel on inner side of the boot provides a smooth surface for excellent grip and feel against the bike and protects from abrasion and heat.Lightweight rubber compound sole offers excellent grip and feel and allows for natural flex as the rider changes position and pressure on the footpeg. Flexible, lightweight toe shifter allows feel for changing gears. Strategically positioned ventilation in heel and shin TPU guides air through the boot, on vented version. Separate internal bio-mechanical ankle brace works with the outer structure of the boot to form a protective system allowing full and free movement of the foot, ankle and leg. External TPU shin protection wraps around to outer calf and is engineered to spread and dissipate impact energy across the entire surface while remaining compact. Clip-on toe-slider provides feel and protects the outer toe box structure from abrasion (upgradeable to a magnesium slider). Replaceable nylon heel plate slider protects from impact and reduces friction in the event of a crash. Outside entry/exit has stretch accordion panel for a close fit and ease of entrance and removal. Zip mounted on accordion stretch panel gives easy closure with excellent fit. Hook-and-loop tab lock the zip pull closed, keeping it flat and secure. Micro adjustable ratchet top closure stows tab end inside calf TPU. Supertech R is CE certified. The item "Alpinestars Supertech R Boots Motorcycle Motorbike Mens SALE White Red" is in sale since Friday, October 20, 2017. This item is in the category "Vehicle Parts & Accessories\Clothing, Helmets & Protection\Motorcycle Clothing\Boots". The seller is "on_yer_bike_ltd" and is located in Westcott, Buckinghamshire. This item can be shipped worldwide.