WindStorm™ covers are created from solution dyed fabric that is exclusive to the brand. They also feature Marinex yarn treatment, which is an advanced UV and mildew resistant coating. The final result is a beautiful cover that will out last and out perform many other covers on the market. Each WindStorm™ semi-custom cover pattern is carefully engineered to produce a cover that is easy to apply yet snug enough to provide a high performance fit. All WindStorm™ covers are handmade with a careful attention to detail, and the pride really shows in the final product. All WindStorm™ Semi-Custom Boat Covers are backed by an unbeatable 7 year warranty that includes a heavy duty strap set, and a black storage bag. WindStorm™ has been proven to deliver outstanding long lasting protection season after season.