Weighing 9.25 oz. per square yard with 24 brilliant colors from which to choose. Genuine Sunbrella is 100% acrylic and undoubtedly the longest lasting boat cover and top fabric made. This premium synthetic material is solution dyed so the brilliant colors are as fade-proof as you can get. Sunbrella is strong, water-repellent, and resists mildewing. It's world renowned for prolonging sun rot from ultraviolet rays. Sunbrella is used on boats from dinghies to yachts when nothing but the best will do. 5-year limited warranty.Orders for Covermate Exact-Fit Covers cannot be canceled and are non-returnable and non-refundable. Please include your boat year, make, and model in your order comments, so we can verify the cover application. If you need help selecting the correct Exact-Fit Cover for your boat, please use our Live Help or call us at 1-888-OVERTON, and we will be happy to assist you. Please have your boat year, make, and model available.