ALPINESTARS SMX1-R V2 Boots - Black - US 13.5 / EU 49 2224021-1100-49 Stainless Exhaust Valve and Spring Kit Made from 1/8" thick high

Made from 1/8" thick high density polyethylene

stronger mounting system that allows for outstanding adjustability

Installs over factory kickstand tab

Cuff and ankle stretch bands to help hold sock in place

Levers are forged from high quality 6061-T6 aluminum

ALPINESTARS SMX1-R V2 Boots - Black - US 13.5 / EU 49 2224021-1100-49 Stainless Exhaust Valve and Spring Kit Made from 1/8" thick highThe 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