MSC Heavy Duty 300D Marine Grade Polyester Canvas Trailerable Waterproof Boat Cover, Gray,Fits V-Hull,Tri-Hull, Runabout Boat Cover,Full Size Boat Cover Made of marine grade polyester canvas with double PU Coating Designed for both long-term storage, mooring and highway travel Resistant to mildew and UV damage Includes adjustable straps and storage bag; 1 Year limited warranty Color: Gray