Alpinestars all-new, purpose-built S-MX R Boot seamlessly blends classic Alpinestars racing performance, flexibility and protection with real world practicality, lightweight and comfort in a fully perforated version providing unprecedented air circulation. All things considered, the S-MX R is the ultimate performance/road riding that is every bit at home on the street as it is on the racetrack. Features: A contoured shin plate protector is injected with high modulus PU for superior impact and abrasion resistance Streamlined air scoops increase ventilation U-shaped calf protector is impact resistant and shields both the ankle and calf area Additional adjustability and security is provided by the top recessed buckle structure Enhanced ventilation via lateral air scoops Injected PU flexible panel guards the internal Achilles tendon Interchangeable bi-injected PU toe slider with snap-in assembly Wide and ventilated injected PU heel counter is combined with an internal shock absorbing padded insert and self molding foam ankle guard Inside heel grip pad for additional feeling with the motorcycle New shift pad area over-injected with soft PU large instep flex zone for maximum comfort and flexibility Micro fiber upper Instep lateral zipper closure, in conjunction with a large flap leads to an easy entry and exit New internal user-friendly calf adjustment allows added comfort for larger calves Replaceable ratchet buckle closure on the calf features a hidden strap for added security Synthetic forefoot lining laminated with open cell foam Highly breathable lining on ankle and leg areas A replaceable contoured foot bed sculpted from Alpinestars PU foam provides enhanced arch support and increased forefoot pedal feeling The sole has been designed for improved feeling between the contact points of the rider’s feet and foot pegs European sizing scale
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