I believe the first impression you make on a potential employer is the most important one. The first judgment an interviewer makes is going to be based on how you look and what you are wearing. That's why it's always important to dress appropriately for a job interview.
If there no uniform require, i will wear acomfortable clothes that will be suitable to work
Never go to work for this company.
You should wear smart clothes. For my interview I wore black trousers, a white blouse and a black blazer.