Almost every component of the Supertech R Vented Boot, Alpinestars definitive racing boot as worn by a roster of champions past and present, has undergone a rigorous program of upgrades to sharpen its performance features even further. Featuring extensive perforations throughout for maximum airflow, innovations derived using feedback from Alpinestars involvement in top flight racing include a newly redesigned front flex area, a redesigned rear bellow, a redesigned top gaitor, a new shifter and shin plate, a new shin slider and a new inner bootie, all of which enhance the comfort, protection and the performance of this boot to a new class-leading high.

• Durable and technical microfiber upper construction offering superb levels of flexibility. Microfiber main shell offers high levels of water-resistance, durability and improved weight-saving. Material ensures consistent fit for long term usage and is easy to maintain and clean.
• Redesigned front flex area constructed from over-injected TPU on breathable mesh with shaped reliefs.
• Newly designed external TPU shin protection is ergonomically shaped and wraps around to outer calf and is engineered to spread and dissipate impact energy across the surface while remaining compact.
• Shin plate features new micro-adjustable ratchet top closure for safe and precise fit.
• Innovative, full-length medial-facing microfiber panel features new texture patterning offering excellent grip and feel against the bike and protects from abrasion and heat.
• Lightweight rubber compound sole has been redesigned to offer excellent grip and feel.
• New, soft TPU stretch panel on lateral side gives easy closure with excellent fit. Zip is made from TPU to reduce friction in the event of a crash. Velcro tab locks the zip pull closed, keeping it flat and secure.
• Integrated replaceable co-injected TPU/Aluminum toe slider features new easy screw fixing concept provides feel and protects the outer toe box structure from abrasion.
• Flexible accordion microfiber stretch at Achilles allows natural movement and support.
• Top gaiter follows leg contour and is made of flexible high-grade synthetic leather reinforced with PU.
• Flexible, lightweight toe shifter allows feel while changing gears.
• On vented version: strategically positioned ventilation in heel and shin TPU guides air through the boot.
• 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.
• Replaceable polymer heel plate slider protects from impact and reduces friction in the event of a crash.
• External entry has stretch accordion panel for a close fit and ease of entrance and removal.
• EN 13634:2010