Almost every component of the Supertech R 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 innovations derived using feedback from Alpinestars involvement in top flight racing, key elements 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.FEATURES Front flex area is constructed with a soft microfiber for improve abrasion resistance and natural forwards and backwards movement Advanced microfiber upper construction for lightweight high performance protection and superb levels of flexibility TPU for breathability and airflow Flexible accordion microfiber on Achilles gives enhanced natural movement Strategically positioned ventilation area in heel and shin Outside entry/exit has stretchable accordion panel for a close fit and ease of entry and removal Contoured high modulus shin plate protector gives superior impact and abrasion resistance An evolution of Alpinestars unique Multi-Link Control system provides advanced external protection and support for ankle articulation, limiting hyper-torsion, hyper-extension and hyper-flexion as well as providing Achilles impact protection. Dual density TPU replaceable toe slider with screw-in assembly provides protective coverage around the outer toe area Wide heel counter with lateral ventilation extends to the ankle and is combined with a shock absorbing padded insert and self-molding ankle reinforcement Replaceable heel slider and external side heel slider are positioned to dissipate and absorb shock and promote sliding during an accident Large front and rear asymmetrical accordion zones are optimized to maximize flexibility Advanced synthetic forefoot lining, laminated with open cell foam for shock absorption and highly breathable lining in ankle and leg areas for comfort Micro adjustable ratchet top closure stows tab end Alpinestars anatomical and replaceable countered EVA footbed provides arch support and forefoot pedal feeling Durable sole, designed for improved riding feel, features evenly textured rubber for consistent grip Alpinestars Lace-Lock System is constructed from an advanced polymer resin to guarantee a quick, precise and secure closure Inner instep speed lacing closure and unique lateral zipper offer precise and secure fit Hook and loop tap locks the zip pull close, keeping in flat and safe
