ALPINESTARS SMX1-R V2 Boots - Black - US 5 / EU 38 2224021-1100-38 Track Jacket — Honda The main upper material is

The main upper material is microfiber Tongue and rear accordion made by lightweight padded material that offer superior comfort

Stock Full System Weight = 18

100mm will fit most European sportbikes along with the 2017 + Kawasaki ZX-10R

The inter core tube is made of stainless that slips over the entrance and into the exit cap that is made of Titanium and accented with titanium beauty cover with a 60* slash cut

ALPINESTARS SMX1-R V2 Boots - Black - US 5 / EU 38 2224021-1100-38 Track Jacket — Honda The main upper material isThe 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