Alpinestars S-MX 3 Boot

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  • $209.95


Clean and contemporary design lines, advanced anatomic profiling and excellent comfort features set the lightweight, CE certified S-MX 3 Boot apart. Conceived by Alpinestars’ performance footwear department to incorporate an innovative buckle closure system and classleading protection, the S-MX 3 offers critical performance edge on road or track.


• Advanced lightweight microfiber main upper for durability and repeated abrasion resistance.

• Alpinestars’ exclusive compound rubber sole promotes improved feel and grip, water dispersion and durability.

• 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.

• Combination elastic-mounted medial zipper with additional, wide aperture Velcro® closure flap on medial side, offers extra protection against the bike.


• The S-MX 3 boot is CE certified.

• 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.

• Internal toe box protection is layered under the upper for durability, improved feel and performance.

• 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.

• Internal high modulus polyamide midsole with integrated shank reinforcement for structure and support to the arch area.


• Instep and Achilles accordion flex zones for superior comfort, extension, control and 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.

• 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.