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Designed for high-performance riding, the Alpinestars SMX Plus Boots feature an advanced microfiber upper construction that offers lightweight protection combined with exceptional flexibility. The soft microfiber front flex area enhances abrasion resistance while allowing natural forward and backward movement, making it ideal for aggressive riding styles. An accordion microfiber panel on the Achilles provides additional natural movement, ensuring comfort during extended wear. The outside entry and exit are facilitated by a stretchable accordion panel that ensures a snug fit and easy removal, reducing fatigue and improving rider confidence.
Built with the innovative Multi-Link Control system, these boots deliver superior external protection and support for ankle articulation. This system limits hyper-torsion, hyper-extension, and hyper-flexion, while also shielding the Achilles and ankle from impact. The dual-density thermoplastic polyurethane (TPU) replaceable toe slider with a screw-in assembly offers reliable protection around the outer toe area. Additional protection is provided by replaceable heel sliders positioned to absorb shocks and facilitate sliding in case of a fall. Large asymmetrical accordion zones at the front and rear maximize flexibility and comfort, enhancing safety during aggressive cornering and sudden movements.
The boots feature a micro-adjustable ratchet top closure with a stow tab end for a secure and customizable fit. The advanced synthetic forefoot lining laminated with open-cell foam absorbs shocks effectively, while the breathable lining in the ankle and leg areas maintains comfort during long rides. The anatomically designed and replaceable EVA footbed offers arch support and a responsive pedal feeling, contributing to rider control. The durable rubber sole is engineered for improved grip and riding feel, with an evenly textured surface for consistent traction. An inner instep speed lacing closure combined with a lateral zipper ensures a precise, secure fit. The Alpinestars Lace-Lock System, made from an advanced polymer resin, provides quick and reliable closure, while hook-and-loop tabs keep the zipper pull secure and flat.
Additional safety features include a contoured high-modulus shin plate for superior impact and abrasion resistance. The boots are finished with a high-performance design that balances protection, flexibility, and comfort, making them suitable for serious riders seeking reliable gear on the road or track.
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