The combination of practicality & 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 & articulated knee design enhance comfort & mobility, while extra protection is afforded by strategically placed ballistic nylon reinforcements. Construction Multi-fabric poly-shell construction yields the optimal combination of durability, protection & weight. Protection against the elements provided by an integrated 100% waterproof & breathable membrane. Pre-curved legs & an articulated knee construction enhance freedom of movement while riding. Optimized for use with the AST-1 Waterproof Jacket. Also available in a &8216, short&8217, version featuring a reduced (-2.5cm) inseam length. Safety Impact protection provided by removable CE certified knee protectors. Ballistic nylon reinforcements on the thighs, knees & seat area. Integrated high visibility reflective piping enhances rider visibility in poor light conditions. Comfort Internal hip compartments are lined with ergonomically tapered PE comfort foam for superior riding comfort. Adjustable waist & secure sliding hook closure for a snug, tailored fit. Extended zippered boot gussets ensure a tight seal around the ankle & facilitate fitting & removal. External flat storage pocket.