ALPINESTARS SMX1-R V2 Boots - Black/Red - US 8 / EU 42 2224021-13-42 rotor validated in the wind tunnel

validated in the wind tunnel and on the track

Depending on the color combination

Home Defense

making it ideal for a wide range of weather conditions Strategically perforated 600D zoning allows air to pass through the main shell

Weight (with battery)

ALPINESTARS SMX1-R V2 Boots - Black/Red - US 8 / EU 42 2224021-13-42 rotor validated in the wind tunnelThe main upper material is microfiber Tongue and rear accordion made by lightweight padded material that offer superior comfort Airflow and ventilation are improved thanks to lateral Air Intake with metallic mesh New speed lace system derived from Alpinestars MotoGP technology for improved quick precise and secure closure Higher closure system with new adjustable hook and loop closure and debossed Alpinestars logo Foam backed double density ankles