ALPINESTARS SMX1-R V2 Boots - Black/Red - US 9.5 / EU 44 2224021-13-44The 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

Easy to mount

CARB compliant (cat-back) on 500 model

Enhanced Airflow Performance: Polyester mesh backhand construction maximizes ventilation

so as to not snag on impact which could send energy into the helmet or cause excess rotational force

delivering exceptional protection without compromising mobility

New inner construction for protection insert upgrades for back (for both regular and long sizes) and chest inserts

Performance Enhancement: Advanced flow design increases horsepower while reducing overall weight by 1

chrome-plated brass and a tough plastic frame

Synthetic leather reinforced outer hand with padding on landing zones provide maximum abrasion resistance

08-pound titanium construction reduces overall weight for improved handling

000 hours lifespan

Sound Enhancement: The 90x120mm elliptical design produces an improved exhaust note