One Goal. One Vision. Alpinestars develops world-class technical apparel and footwear for all forms of motorcycling, auto racing and action sports as well as offering a large range of stylish casual clothing. Waterproof pants for track use in wet conditions, designed to be worn over the top of a leather suit. Constructed from 2 mm 100% waterproof transparent material. Polyurethane-coated ergonomic stretch inserts on crotch and legs. Pre-curved design for optimal fit in the racing position. Hole cutouts for knee sliders. Taped and sealed seams. Reflective details on the pants for improved rider visibility. Waterproof zipper closure.