What are "breeches"?

Breeches are a type of pants that were originally designed for horseback riding. They were popular in Europe from the 16th to the 19th century and were traditionally worn by men. They were form-fitting pants that extended to the knee or just below and were often fastened with a button or buckle. Breeches were typically worn with stockings and a waistcoat and were often made of fine fabrics such as silk or velvet for formal occasions. In the 18th century, breeches were commonly worn as part of a three-piece suit, which included a coat and waistcoat.