Did you know that picking the right outfit for each situation is also a soft skill? The soft skills professional appearance is one of the 7 most important ones according to employers.
That doesn't mean you have to dress like you're going to a gala event each time you're going to a job interview. That would deflect the attention from your skills and experience. For a job interview, it's best to pick an outfit that is smart but modest, but still comfortable for you.