Founded in 1963, Alpinestars has built a reputation of innovation and prestige. Now, more than fifty years later, Alpinestars is synonymous with quality, protection, technology and style. Featuring an engineered fit designed to deliver the highest level of active race protection, these pants are Tech-Air® ready and can accommodate the Tech-Air® 10 Airbag System (sold separately) with its extended hip protection. Perforated leather panel for optimal airflow. Comfort fit; design follows the contours of the knee for the optimal blend of comfort and freedom of movement. Dual layers in exposed areas for additional abrasion resistance. Premium leather main chassis constructed from 1.3 mm genuine bovine leather. 'High Flex' design for an optimized fit and enhanced freedom of movement. Accordion leather stretch zones above the knee offer improved flexibility.