Start with how your boat lives. A boat that gets put away, on a trailer or in storage, suits a full cover. A boat that waits on its lift or at the dock, rigged and ready to run, suits individual covers for the console, seats, motor and electronics. Then choose protection: 3-Star is everyday protection for a boat used often; 4-Star steps up durability for harsher sun and longer seasons; 5-Star is our most protective, longest-lasting cover. If you trailer at highway speed, tell us in the quote.