ALPINESTARS SMX1-R V2 Boots - Black/Red - US 6.5 / EU 40 2224021-13-40 Replacement Boot Soles — Tech 7 Nucleon Flex Pro armor delivers

Nucleon Flex Pro armor delivers optimal protection against impacts

The System is the full filter care solutionKit comes with everything needed to clean Twin Air air filters in a sturdy storage box complete with carrying handles

decreases operating temperatures

Soles and buckles are easily replaceable

ALPINESTARS SMX1-R V2 Boots - Black/Red - US 6.5 / EU 40 2224021-13-40 Replacement Boot Soles — Tech 7 Nucleon Flex Pro armor deliversThe 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