Informal wear, also called business wear, corporate/office wear, tenue de ville and, colloquially, dress clothes, is a Western dress code for clothing defined by a dress shirt with necktie or a polo shirt, sometimes with a business suit for men, and cocktail dress or pant suit for women.

Business attire is the clothing you wear in professional settings. … There are varying levels of business attire ranging from “casual” to “business formal.” Based on the setting, you can decide which kind of business attire is appropriate.