SavvyCraft Custom Fit Personal Watercraft Covers feature a heavy and extremely durable Marine Grade 600D fabric that is treated during the manufacturing process to help weatherproof the fabric for maximum water resistance. This cover protects against rain, snow, dirt, dust and harmful UV rays. Standard is a strong elastic shock-cord hem around bottom of cover to help ensure a tight fit as well as a built-in trailering system with quick release buckles to keep cover secure while trailering.