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The Alpinestars SMX Plus motorcycle boots are engineered for high-performance riding, offering a lightweight microfiber upper construction that combines protection with exceptional flexibility. The front flex zone, made from soft microfiber, enhances abrasion resistance while supporting natural forward and backward movement, ensuring comfort during aggressive riding. An innovative accordion microfiber on the Achilles area provides increased flexibility and natural ankle movement, reducing rider fatigue during extended use. The outside entry and exit features a stretchable accordion panel that guarantees a secure fit while making it easier to put on and remove the boots. This design detail is complemented by Alpinestars' advanced Multi-Link Control system, which delivers superior external ankle protection and support. It limits hyper-torsion, hyper-extension, and hyper-flexion, effectively safeguarding the ankle from impacts and injuries while maintaining maximum mobility. The protective system is further enhanced with replaceable dual-density TPU toe sliders, which are screw-in and provide durable coverage around the outer toe, helping to absorb impacts during falls or slides. Additionally, the boots feature replaceable heel sliders and external side heel sliders strategically positioned to dissipate shock and facilitate sliding in case of an accident. Large asymmetrical accordion zones on the front and rear of the boots are optimized to maximize flexibility and comfort, offering an improved riding experience. The secure fit is maintained with a micro-adjustable ratchet top closure with a stow tab end, ensuring the boots stay snug during rides. The advanced synthetic forefoot lining laminated with open-cell foam provides excellent shock absorption, while the highly breathable ankle and leg linings keep the rider comfortable in various conditions. An anatomical, replaceable EVA footbed offers arch support and sensitive pedal feedback, enhancing control and comfort. The durable rubber sole is designed for optimal grip and riding feel, featuring a textured pattern that ensures consistent traction. For a secure fit, the boots include an inner instep speed lacing closure, complemented by a lateral zipper for quick donning and removal. The innovative Lace-Lock System, made from advanced polymer resin, allows for fast, precise, and secure closure, while a hook-and-loop tab locks the zipper pull in place for added safety. A contoured high-modulus shin plate provides superior impact and abrasion resistance, completing the comprehensive protective features of these high-performance motorcycle boots.
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