Mackintosh

The Mackintosh raincoat (abbreviated as mac) is a form of waterproof raincoat, first sold in 1824, made of rubberised fabric.

The Mackintosh is named after its Scottish inventor Charles Macintosh, although many writers added a letter ''k''. The variant spelling of "Mackintosh" is now standard.

Although the Mackintosh coat style has become generic, a genuine Mackintosh coat is made from rubberised or rubber laminated material. Provided by Wikipedia