Stellax Boat Cover Blue 17-19 ft. Light and strong trailerable boat cover resists sun fade and provides UV protection. Tough polyester Stellex™ fabric designed for durability and weather protection shrink. Integrated buckle and strap system for easy fitting and trailering, adjustable straps snap into quick-release buckles on the cover. Full cut to allow extra room for accessories such as bow rails, running lights, etc. Elastic cord sewn into bottom hem for a tight, custom fit. Fabric coating technology resists dirt and stains while providing water-resistance. Resistant to mildew and UV damage. Storage bag and trailering straps included. Quick-release buckle and strap system for easy fitting and trailering.