With its ergonomically optimized sport touring design

and comfort demanded by aggressive dirt performance

The SMX Air also incorporates perforated 450D polyfabric on the upper chest for excellent levels of airflow during the warm

sustainable impact protection

a dura ride pants blue green YGroup_2654321 With its ergonomically optimized sportAlpinestars essential go to pants for all MTB activities, the A Dura Ride Pants offer an added level of stretch for superior freedom of movement on the bike. The pants have been engineered and constructed to provide superior durability and the ruggedness needed for the mountain bike environment. The pants feature a front ratchet closure system with zippered fly and two secure, mesh lined zippered side pockets