Business professional is a traditional form of attire used in more conservative settings or companies with strict dress codes. You might wear business professional in industries like accounting, banking, finance, government or law. Business professional clothes should be well-fitted.
When dressing for business professional, women should wear dresses, skirts or slacks, tops should include neat button-down shirts or blouses with a blazer.
Business formal is reserved for the most formal settings such as: award ceremonies, special dinners, benefits or other important evening events. For business formal, women might wear a dark pants suit, skirt suit or suit dress.