We don't have uniforms at school or the university, or any other places. However, we do have student overalls in different universities, and they're usually something the students wear in less formal student events and parties, such as sauna nights, First-of-May activities and other things like that. Different training programs have different colors for their overalls, so you can distinguish people who are studying different things. I'm in technical and natural sciences, so I have purple overalls, but some other people, such as those studying machine engineering, have red overalls.