Constructed from "Cloudburst", a silver/gray marine canvas duck that is renowned for its overall durability, performance and longevity.  It is an exceptionally tight woven 11oz. polyester/cotton blend that is treated with a mill applied water repellent and mildew resistant finish for maximum boat protection. Designed to accomodate blunt nose style boats with or without outboard motor installed in tilt position. 3 year limited warranty.