Alpinestars AST-1 WP Pants Multi-fabric shell construction yields the optimal combination of durability, protection and weight. Featuring ballistic nylon reinforcements on thighs, knees and seat area. The built-in waterproof and breathable membrane will keep you protected from the elements. Articulated knee construction and pre-curved legs for superior fit and comfort. Impact protection provided by removable CE certified knee protectors and internal hip compartments with ergonomically tapered PE protective foam padding. Features Extended zippered boot gussets External flat pocket Integrated high visibility reflective piping enhances rider visibility in poor light conditions Adjustable waist and secure sliding hook closure