The polo shirt, unlike the shirt, is mainly suited to informal situations. Despite the collar and buttoned neckline (which, according to etiquette, should be undone with one button), it is not suitable for formal situations, business meetings and official speeches. The undoubted advantage of the polo shirt is its comfort and freedom of movement. The polo shirt also provides a much better image than the popular T-shirt. It is therefore suitable for industries that involve contact with clients, as well as physical work. Polos are therefore worn by paramedics, shop assistants and waiters. In the case of polo shirts, it is important to remember that the vertical placement of the collar does not add any self-confidence, and on the contrary, it has long since gone out of fashion.