Dowco Trailerable Semi-Custom Boat Cover for 17ft 6" up to 18ft 5" European Style V-Hull Runabout with I/O and a Beam Width up to 100". Fits European Style Bowrider, Open Bow, Closed Bow, and Cuddy Style Boats. Designed for European Style runabouts with sweeping curved windshields and molded in swim platforms Constructed using 600 Denier, 8.2oz. ClimaShield Plus. ClimaShield Plus is a very durable, water resistant and breathable material that will protect your boat from all outdoor elements. The material is breathable, which will help reduce mildew growth under the cover. The solution dyed polyester is made from polyester that is extruded from colored material, making it highly resistant to fading. Includes: Cover, two vents to assist with ventilation, tie down straps, straps across the cover, elastic cord around the bottom of the cover to help it fit snug to your boat Vented to release moisture, Durability: Excellent, Water Repellency: Excellent, Water Resistance: Good, UV/Fade and Stain Resistance: Excellent Limited 7 Year Warranty, Made in the USA