The term Malay Sailing Boat is referring to a type of traditional boat used by the Malay people. The word PROA is a four letter term used to describe this type of boat. PROA boats are characterized by their asymmetrical design, with one end being much longer than the other. They are also known for their distinctive double-hulled construction and their use of outrigger booms for stability. PROA boats are still used today in many parts of Southeast Asia, particularly in Indonesia and Malaysia.