Not every industry requires you to be suited for your interview. Some more traditional industries, such as law or finance, require suiting.
Suits are expensive, and as a new professional, you may struggle to afford one. Luckily, there are programs, such as Dress for Success, that provide clothing and other types of career support.
For start-ups, tech jobs, and many other industries, you may find yourself with more freedom to dress business casual or business smart. Below are some resources on what kinds of looks you might go for in non-traditional industries.