Alpinestars’ S-MX Plus racing boot raises performance and safety to new and unmatched levels with its innovative design, structural protection and comfort.

• Contoured shin plate protector is injected with high modulus PU for superior impact and abrasion resistance.
  
  
• U shaped calf protector is impact resistant and protects the ankle and calf area. Additional protection is provided by the top recessed buckle structure.
  
  
• Interchangeable bi-injected PU toe sliders with snap-in assembly.
  
  
• Wide and ventilated heel counter extends to the ankles and is combined with a shock absorbing padded insert and self-molding foam ankle protectors.
  
  
• Replaceable sliders are positioned in the back and external section of the heel to allow the boot to slide and absorb shocks.
  
  
• Injected PU material extended to the to area.

• Large instep flex zone for maximum comfort and flexibility.
  
  
• Lorica and leather upper.
  
  
• Sole has been designed for improved feeling between the rider's foot and the pegs of the motorcycle.
  
  
• Instep speed lacing closure and a unique lateral zipper.
  
  
• Replaceable ratchet buckle closure on the calf features a hidden strap for security and is integrated with a calf slider.
  
  
• Synthetic forefoot lining laminated with open cell foam. Highly breathable lining on ankle and leg areas.
  
  
• Alpinestars anatomical and replaceable countered footbed provides arch support and forefoot pedal feeling.