The Alpinestars ST-1 WP pants match the Alpinestars ST-1 WP jacket. Made from a blend of 600D poly fabric materials, they have ripstop fabric reinforcements on the inner legs and are fully CE-certified motorcycling garments to CE - Category II EN 17092-4:2020 - A-Class. A fixed waterproof liner keeps you dry and comes with a detachable 80g thermal liner with a zipped connection to anchor the liner to the pants. The new, ergonomic active touring fit with pre-curved legs, 3D ergonomic knees and a comfortable crotch gives excellent freedom of movement and premium riding comfort. Ergonomic, zipped front pockets provide generous storage capacity, and a fixed mesh liner enhances rider comfort. Lower leg, hook and loop ankle adjusters and waist volume adjusters offer a customised fit. A connection zip attaches to matching jackets, and reflective detailing enhances visibility. CE level 1 Nucleon Flex Plus armour at the knees gives superior levels of protection. Matching items and other colours available.