Waterproof motorcycle trousers Alpinestars ST-1 WP
The Alpinestars ST-1 WP motorcycle pants are designed for adventure and touring riders seeking dependable all-weather performance combined with superior mobility. Built with a hard-wearing 600D poly-fabric shell and reinforced ripstop panels on the inner legs, these textile motorbike trousers keep you dry thanks to a fixed waterproof WP membrane. For chilly mornings and winter rides, the removable 80g thermal liner delivers tailored warmth without excess bulk. Engineered with an active touring cut, pre-curved legs, and low-profile Nucleon Flex Plus armor, they offer all-day riding comfort on any journey. Pair with the matching ST-1 WP jacket for a complete outfit.
Key features
- Material & Membrane: Durable 600D poly-fabric chassis with abrasion-resistant ripstop inner leg panels; features a fixed waterproof WP membrane and a detachable 80g thermal liner.
- Safety & Protection: CE Level 1 Nucleon Flex Plus knee armor (EN 17092-6:2020) with a 3-tier internal pocket system for custom positioning; garment fully CE certified to EN 17092-4:2020 Class A; reflective thigh accents for enhanced nighttime visibility.
- Comfort & Practicality: Fixed internal mesh lining for optimal breathability, flexible crotch design for unrestricted movement, and two secure zippered front pockets for essentials.
- Fit & Adjustability: Ergonomic ACTIVE touring fit with pre-curved 3D knee construction; adjustable hook-and-loop waist and lower leg straps; jacket-to-pants connection zipper.
- Season: All Season versatility, engineered for wet, cold, and variable riding conditions.
- Sizes & Gender: Available in sizes S to 4XL for Men.