OUR TOP-TIER DIRT BIKE PANTS - BUILT FOR MAX MOBILITY AND BREATHABILITY The Flexair Mach One Pants are designed to function seamlessly with the human body. They're cut from lightweight and flexible materials which anticipate your every move on the dirt bike. The main body uses our 4-way stretch Cordura® TruMotion® fabric for a balance of mobility and durability. A double layer knee system combines a full-grain leather outer knee with an abrasion-resistant inner knee, guarding against both external and internal wear and tear. The knee system is also smartly tailored for compatibility with motocross braces and guards. To help regulate body temperature, strategically placed venting is incorporated to increase airflow. Rider Attack Position™ (RAP) construction for improved ergonomic fit on the bike Cordura® TruMotion® zonal all-way stretch panels provide unmatched mobility Precision knee paneling for a slim fit over braces or guards Double-layer knee system with a full-grain leathe