ALPINESTARS SMX1-R V2 Boots - Black/Red - US 9 / EU 43 2224021-13-43 Torque Spacer Kit Alpinestars Dynamic Friction Shield (DFS)

Alpinestars Dynamic Friction Shield (DFS) knuckle protection system features dual-density molded construction for superior resistance to repeated impacts

12" x 19" sheet

high beam (blue)

Machined-aluminum flanged insert

ALPINESTARS SMX1-R V2 Boots - Black/Red - US 9 / EU 43 2224021-13-43 Torque Spacer Kit Alpinestars Dynamic Friction Shield (DFS)The 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