Super strong and easy to handle, Covermate Imperial Pro Boat Covers are made of 100% polyester 450-denier fabric that's breathable, water-repellent, and UV-resistant. Imperial Pro Covers have an exclusive venting system that offers extra protection against mildew. Tough enough for trailering, all Covermate Semi-Custom Boat Covers are tight fitting with a unique over/under tie-down system that delivers "no flap" trailering. A reflective strip at the back provides added safety when trailering, day or night. Double-stitched, double-ply seams combined with sewn-in reinforcement panels at high-wear points provide added strength and durability. Covermate Semi-Custom Boat Covers come with quick-release buckles and straps. Dent & Ding items have minor cosmetic imperfections that will not affect its performance and in some cases it is not noticeable. These products are non-returnable and non-refundable.