Most interviews require the candidate to dress professionally. However, that is not always the case because it depends upon the job that the man is applying for. For instance, if the job is for a lifeguard position, then the man may want to dress more informally. For most interviews, the man must dress formally. A nice suit with a tie would suffice. If you are out of work and are looking for a job, then you may want to make sure that you have an outfit that you wear to all interviews.
This outfit should be a dark suit with a white shirt and a tie that is neutral. You don’t want a tie that is very colorful or has a lot of patterns on it. Instead, it should be a solid color. The shoes should go with the suit and be polished.