Is it appropriate to wear ballet flats to an interview? There is no simple answer. There are times where you will be more comfortable in a more casual shoe and other occasions where a more formal shoe would be required. It is best to use your best judgment about what type of shoe would be appropriate based on the position you are interviewing for, the company’s dress code, and the culture of that organisation. Ballet flats can work as long as they are black or navy blue in color and they have little heel height.