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 & an ultra-lightweight construction, the Supertech Jersey is Alpinestars lightest ever MX jersey, featuring a host of race-proven technologies such as the innovative ergonomic shoulder & arm construction for superior freedom of movement & an extended back panel to maintain a flawless riding fit. Features Athletic, performance fit design designed for aggressive riding & professional levels of movement, flexibility & comfort Main material engineered to be light & stretchable, while also delivering superior durability Ultra-lightweight advanced, premium knitted stretch & moisture-wicking main chassis fabric for optimized comfort High airflow open mesh inserts on arms & side torso for optimum ventilation Tape-welded, low profile neck opening for ease of use Pre-curved sleeves shaped to the riding position for reduced rider fatigue Extended back panel length for greater coverage on the back Sublimated fade-resistant graphics