Business suits are a type of formal attire typically worn by corporate executives and other professionals in the business world. The term 'business suits' can refer to two different types of clothing: the two-piece suit, which consists of a jacket and trousers, or the three-piece suit, which includes a vest. Commonly, business suits are made from wool, cotton, or synthetic fabrics and are usually black, navy blue, or gray in color. The acronym CEOS stands for Chief Executive Officers, while EXECS stands for Executives. Both CEOS and EXECS are high-level positions within a company, and they are often required to wear business suits as part of their professional dress code.