Alpinestars - ST-1 Waterproof JacketFixed waterproof liner offers wet weather performance. Front, vent openings on the chest provide cooling airflow, as the jackets venting system provides an increased surface area for air exchange, improving breathability and offering optimal riding comfort. Redefined, modern shoulder design with Alpinestars stylish branding gives the jacket an adventure touring inspired look. The ST 1 WP has a comfort fit with pre curved arms, and ergonomic elbows for