The new Alpinestars SMX 4 is a hybrid of high performance racing technology coupled with every-day street riding functionality and practicality. Highly durable with a natural range of motion, the SMX 4 also features a wide fitting foot shape for maximum comfort.

• Durable microfibre construction and injected PU shields the shin, ankle, calf, toe and heel from impact while minimizing abrasion.
• Innovative air vents at the shin, calf, heel and forefoot are covered with a specialy designed mesh (with a waterproof membrane) to provide unmatched levels of rider comfort.
• Large instep and Achilles flex zones for superior comfort.
• Quick drying polyamide lining is laminated with open cell foam and high density contoured padding to absorb shocks to the foot area.
• An extra wide Velcro flap, in unison with an innovative offset rear opening/closure system that features an elastic mounted zipper, adds to precise, comfortable fit.
• Anatomical and removable PU foam foot bed is vented to keep the riders foot cool and comfortable.
• New dual rubber compound race sole provides a precise feel and improved grip both on and off the bike.
• Exclusive sole features a structured shank reinforcement for added support to the arch area.

CE Certified