A Mackintosh is a type of waterproof raincoat made from rubberized fabric. It was invented in the early 19th century by Scottish chemist Charles Macintosh, who developed a method to bond layers of cloth with rubber. This innovation made the coat both durable and effective at keeping the wearer dry in wet weather. Typically, a Mackintosh features a simple design, often with a button-up front and a hood. It is lightweight and can be easily folded for storage, making it a practical choice for unpredictable weather. The coat remains popular today for its classic style and functionality.