Supertech is Alpinestars innovative Motocross apparel line, designed for superior dirt riding performance. With an engineered 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-proven technologies, the Supertech Jersey has innovative ergonomic shoulder and arm construction for superior freedom of movement and an extended back panel to maintain a flawless riding fit. Athletic, performance fit designed for aggressive riding and professional levels of movement, flexibility and comfort. Main material is engineered to be light, vented and stretchable, while also delivering superior durability. Moisture wicking fabric for optimized comfort. High airflow open mesh inserts on side and full back for optimum ventilation.