ALPINESTARS SMX1-R V2 Boots - Black/Red - US 6.5 / EU 40 2224021-13-40 Replacement Boot Soles — Tech 7 ultraflexible Flex Plus race bovine

ultraflexible Flex Plus race bovine leather that is highly adaptive to the body

directional movement and comfort

Features advanced acoustical tuning technologies for deep rumbling sounds 4" round muffler front expands to 4

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 ultraflexible Flex Plus race bovineThe 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