Boating requires a great deal of skill and patience. It also requires a way to communicate with other boaters and watercraft. Nautical flags provide that communication. Flags International has a full line of officer flags, International Code of Signal flags, Storm Warning sets, message flags and even small novelty boating fun flags. The U.S. Yacht Ensign line is one of our more popular lines out of the Nautical Flags with sizes from 12″ x 18″ to 4′ x 6′, we have the US Yacht flag for you. We are also proud to offer the U.S. Power Squadron flags and Coast Guard Auxillary flags. If you need a smaller state flag, we have the 12″ x 18″ flags of all fifty states and territories for your smaller watercraft as well.