Alpinestars Bionic Flex Knee Protector Size:Large/X-Large The pre-curved leg construction follows

The pre-curved leg construction follows the natural attack stance

triple-layer foam and tear-off lens functionality

while True Functional Ventilation (TFV) efficiently channels airflow through intake and exhaust vents

Built for riders who live in the dirt

Alpinestars Bionic Flex Knee Protector Size:Large/X-Large The pre-curved leg construction followsWith ergonomically profiled Nucleon Flex Technology protection held securely in position via an elasticated top strap and silicon hems, the Bionic Flex Knee Protector incorporates comfort padding with a soft touch stretch mesh which prevents heat build up. The asymmetric and lightweight design ensures this knee protector provides optimal levels of comfort and freedom of movement