The Alpinestars ST-1 WP jacket is Tech-Air-Ready and fully CE-certified II EN 17092-4:2020—A-Class. CE Level 1-rated Nucleon Flex Plus elbow and shoulder armour provide additional protection. A fixed waterproof liner offers wet-weather performance, and front vent openings on the chest provide cooling airflow. A detachable thermal liner, 80g torso, and 80g sleeves with snap button connections anchor the liner to the jacket. It can be conveniently stored in the jacket's spacious lower back cargo pocket. The adventure-touring design also features ergonomic cargo pockets with a slim design and built-in expansion, which provides added storage capacity. Pre-curved arms and ergonomic elbows give optimum freedom of movement, and sleeve volume adjusters with press buttons on the biceps, hook-and-loop collar, cuff, and waist adjusters provide a nice, tailored and personalised fit. The extended cut on the back allows greater coverage in the riding position and prevents weather ingress. A zip to connect to pants gives a secure fit. Available in a choice of colours.