Thermoformed from nearly 3/16” thick (starting gauge) making it very durable. This is the same material ATV fenders are made from. The sides extend out to cover your shoulders, unlike others on the market. It installs in minutes with Rubber Coated metal straps provided. The hump in the center from and the two humps in the rear allow clearance for the optional stereo and speakers P/N: 12718 (sold separately).