Blazers are a worn outer garment that has multiple purposes. Firstly, it is used in a professional setting to maintain a sense of dedicated work ethic. Secondly, it provides a work relationship that is objective as it maintains some level of professionalism. Lastly, it is thicker than most typical cloth material so it also provides warmth against the often air-conditioned work environment. The sharp & smart look is a definite bonus for the wearer.