Alpinestars SMX Air Jacket Contains RETIRED ULTRA HD integrates with a

ULTRA HD integrates with a shatterproof and impact resistant polycarbonate material molded specifically for zero optical distortion

Those features combined with the SEESOFT 3D knuckle

the inside of the collar is covered with a soft fabric

Without going too much into detail

Ideal for high-end synthetic motor oil

Alpinestars SMX Air Jacket Contains RETIRED ULTRA HD integrates with aFEATURES A motocross inspired textile jacket, the SMX Air Jacket features a main chassis constructed from tech mesh on the rider's abdomen, back, and inner arms, paired with 450D polyfabric reinforcement on the outer arms and shoulders The SMX Air also incorporates perforated 450D polyfabric on the upper chest for excellent levels of airflow during the warm, summer riding months Extended polyamide stretch material has been incorporated on the rider's