The Mackintosh or Macintosh (abbreviated as mac or mack)'s a form of waterproof raincoat, first sold in 1824, made out of rubberized fabric. The Mackintosh's named after its Scottish inventor Charles Macintosh, though a letter k's added by many writers. Although the Mackintosh style of coat has become generic, a genuine Mackintosh coat should be made from rubberised or rubber laminated material. Mackintosh brand Charles Macintosh patented his invention for waterproof cloth in 1823 and the firs… (More on Mackintosh)