Supertech is Alpinestars innovative motocross apparel line, designed for superior dirt riding performance. With a new performance design for an athletic fit, a chassis consisting entirely of advanced stretch mesh and an ultra-lightweight construction, the Supertech Jersey is Alpinestars lightest ever MX jersey, featuring a host of race-proved technologies such as the innovative floating arm construction for superior freedom of movement and an extended back panel to maintain a flawless riding fit. Ultra-lightweight advanced fabric main construction for moisture-wicking and performance fit. Jersey features a more fitted, lightweight fit design. Chassis consists of stretch mesh chassis with open mesh inserts on arms and side torso for high levels of cooling airflow. Innovative, fully floating arm construction offers full freedom of movement. Neck and sleeves feature fully tape-welded hems for reduced weight and improved levels of comfort. Pre-curved sleeves for maximum comfort and performance. Extended rear design helps maintain perfect riding fit. Sublimated fade-resistant graphics.