A sport coat, also called a sports coat, sports jacket, tweed jacket, or tweed coat, less commonly known as a sportcoat, is a jacket for men. Though it is of a similar cut and length to a suit jacket, there are several differences. First, a sport coat may be worn on less formal occasions than a suit would be. Also, it is designed to be worn on its own, without matching trousers, and does not come as part of a suit. Styles, fabrics, colours and patterns are also more varied than in most suits; sturdier and thicker fabrics may be used, such as corduroy, suede, denim, leather, and tweed.Originally, sports coats were worn as casual attire for hunting and other outdoor sports (hence the name).