*Advanced lightweight microfiber main upper for durability and repeated abrasion resistance.
*Instep and Achilles accordion flex zones for superior comfort, extension, control and support.
*Double density ankle protector on medial side layered under the upper offers protective performance and abrasion resistance in keyarea.
*External, high modulus TPU heel counter, lateral ankle and shift pad for improved shock protection and durability.
*Shin plate reinforced with hot melt for additional protection against knocks and weight-saving.
*Integrated, replaceable bi-injected TPU forefoot slider features new easy-screw fixing concept for quicker and easier replacement.
*Combination elastic-mounted medial zipper with additional, wide aperture Velcro® closure flap on medial side, offers extra protection against the bike.
*Internal toe box protection is layered under the upper for durability, improved feel and performance.
*Alpinestars new buckle closure system offers a rapid and secure fit over the instep area and improved foot support while permitting excellent levels of flex control.
*CPS’s ergonomic buckle is attached to a durable dual density TPU mounting and is constructed from a technical compound aluminum for greater abrasion resistance. Alpinestars buckle and ratchet strap is replaceable.
*CPS system forms a biomechanical link between lateral top calf/shin and ankle offers improved structural integrity, protection against impact shocks, abrasion resistance and flex support.
*Ergonomic new boot shaping for forefoot streamlining which enables greater control of the bike’s controls and for superior, wide ranging foot profile, fit and comfort.
*Internal high modulus polyamide midsole with integrated shank reinforcement for structure and support to the arch area.
*Alpinestars’ exclusive compound rubber sole promotes improved feel and grip, water dispersion and durability.
*Breathable textile interior lining features anti-sliding suede reinforcement on heel area help keep foot in position while riding.
*Internal padding for 360° comfort and fit around the ankle.
*Removable anatomic foot-bed includes EVA foam and Lycra® for convenience, comfort and support.
*The S-MX 3 boot is CE certified.