Alpinestars ST-1 Waterproof Pants

The Alpinestars ST-1 Waterproof Pants deliver reliable all-weather protection for riders tackling unpredictable conditions. Built from durable 600D poly fabric with poly ripstop reinforcement on the inner legs, these pants provide a balance of flexibility and durability without sacrificing comfort. The fixed waterproof liner blocks wind and rain, while the ergonomic active fit with pre-curved legs and 3D-shaped knees supports natural movement during extended rides. Engineered for versatility, the ST-1 features a detachable 80g thermal liner for added warmth during cooler rides, multiple cargo and internal pockets for practical storage, and adjustable fit points at the waist and cuffs. An extended rear cut ensures coverage in the riding position, while the pant connection zipper allows seamless integration with compatible jackets. Whether you're adventure touring or commuting year-round, the ST-1 Waterproof Pants offer dependable performance and functional design for any riding situation.

• Ergonomic active fit pants with pre-curved legs, 3D ergonomic knees, and a comfortable crotch construction for freedom of movement and premium riding comfort 
• Fixed waterproof liner 
• Detachable 80g thermal liner with zipper connection to anchor the liner to the pants 
• Fixed membrane liner for enhanced rider comfort with internal pockets for a divided chest protector and a back protector pocket 
• 2 front cargo pockets, 1 lower back cargo pocket, 1 zippered chest pocket, and 2 inner mesh pockets, provide generous storage capacity 
• Sleeve volume adjusters with press buttons on the biceps, hook and loop collar, cuff, and waist adjusters provide for a well-tailored fit 
• Extended cut on the back for greater coverage in the riding position 
• Pant connection zipper for a secure fit