A Mackintosh is a form of waterproof raincoat, first sold in 1824, made out of rubberised fabric. The Mackintosh is named after its Scottish inventor Charles Macintosh: note the added letter 'k' in the name of the garment.
Although the Mackintosh style of coat has become generic, a genuine Mackintosh coat should be made from rubberised or rubber laminated material.
As well as their practical use as a rainproof garment, Mackintoshes feature in a peculiarly British form of rubber fetishism.
- www.weathervain.com A London based company supplying fetish rainwear.