Building off of the success of the original, the latest Alpinestars Supertech R Boots have been redesigned to maximize performance and comfort, allowing supersport riders to push the limits and realize their potential. In its latest form, the Supertech R improves ventilation, protection and ergonomics. The TPU areas on the boot have been updated to better protect and ventilate the entire foot, while the integrated bio-mechanical removable ankle brace compliments the external structure of the boot, preventing lateral movement. Features: ⢠Strategically positioned ventilation in heel and shin TPU guides air through the boot ⢠Durable and technical microfiber upper construction offering superb levels of flexibility ⢠Front flex area is constructed with a redesigned soft TPU over inject on breathable mesh with shaped reliefs for improve abrasion resistance and natural forward and back movements ⢠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 suede 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 foot-peg ⢠Flexible, lightweight toe shifter allows feel for changing gears ⢠Extremely protective, flexible and comfortable with excellent aerodynamics ⢠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 ⢠Replaceable Clip-on Shin-slider improves protection from abrasion ⢠Integrated replaceable co-injected TPU/ Aluminum Toe slider features easy screw fixing concept provides feel and protects the outer toe box structure from abrasion ⢠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 ⢠Zipper mounted on soft TPU stretch panel gives easy closure with excellent fit ⢠Additional TPU Zip slider reduces friction in the event of a crash ⢠VELCROŽ brand fastener tab lock the zip pull closed, keeping it flat and secure ⢠Micro adjustable redesign ratchet top closure stows tab end ⢠CE certified to EN 13634:2010