The combination of practicality and performance offered by Alpinestars AST-1 Waterproof Pants allows the rider to concentrate on enjoying the road, no matter what the weather brings. The pre-curved leg construction and articulated knee design enhance comfort and mobility, while extra protection is afforded by strategically placed ballistic nylon reinforcements. Features Multi-fabric poly-shell construction yields the optimal combination of durability, protection and weight. Protection against the elements provided by an integrated 100% waterproof and breathable membrane. Pre-curved legs and an articulated knee construction enhance freedom of movement while riding. Optimized for use with the AST-1 Waterproof Jacket. Also available in a ‘short’ version featuring a reduced (-2.5cm) inseam length. Impact protection provided by removable certified knee protectors. Ballistic nylon reinforcements on the thighs, knees and seat area. Integrated high visibility reflective detailing enhances rider visibility in poor light conditions. Internal hip compartments are lined with ergonomically tapered PE comfort foam for superior riding comfort. Adjustable waist and secure sliding hook closure for a snug, tailored fit. Extended zippered boot gussets gussets ensure a tight seal around the ankle and facilitate fitting and removal. External flat storage pocket.