A Macintosh coat, often simply called a Mac, is a type of waterproof coat made from rubberized fabric. It was originally designed in the 19th century by Charles Macintosh, a Scottish chemist, who invented a method to bond layers of fabric with rubber. This innovation made the coat both durable and resistant to rain, making it popular for wet weather. The Macintosh coat typically features a simple, straight-cut design and is often unlined. It is available in various colors and styles, appealing to both practical needs and fashion trends. Today, it remains a staple in many wardrobes, especially in regions with frequent rain.