Restoration fashion

For gentlemen: long waistcoat without buttons (this coat was probably the most significant novelty). The reason for introducing this jacket was simple: It was far more practical for riding, although it still went down to the knees. One could choose between breeches (which were very wide and therefore looked more like petticoats and not like short trousers) and stockings. Wigs were also introduced. At the beginning, they were small, but they grew bigger over the years.

Source

http://www.britishempire.co.uk/art/fashion.htm