The polo shirt is a versatile clothing item that can be dressed up or down depending on the occasion. For example, for a casual event like a family gathering, a polo shirt could be paired with jeans or shorts. On the other hand, for more formal occasions such as job interviews or business meetings, it could be worn with dress pants and leather loafers to give the ensemble a professional look. In short, whether you style the polo shirt formally or casually depends entirely on how you pair it with other pieces of clothing.