20-22 Foot V Hull Boat Cover Our boat cover is made of durable marine-grade material with PVC coating; it is water-resistant and tear-resistant, keeping your boat protected from dust, rain, snow, and sun, significantly reduced premature aging of boating. Best partner for your yacht. Note: The boat cover isn't 100 % waterproof. It is made by sewing technology. If there is a pinhole, the cover may leak when it rains heavily. Universal Boat Cover Marine Grade Material Waterproof & UV Resistant Comprehensive Protection To ensure your using experience, we recommend that you choose a boat cover size that is a little more than 2-4 inches larger than the hull. Key Features Marine Grade Material: This waterproof boat cover is made of marine-grade 210D oxford fabric with PVC coating; it is easy to withstand tearing, fading, wetting, and cold cracking. It can keep your boat in the best condition. Waterproof & UV Resistant: Our boat mooring cover provides full protection for your boat on cloudy,