As I walk past students preparing to head into interviews, many of them look incredibly sharp. Pressed shirt and suit, good accessories, hair is set…they set a very positive first impression. When I see another student come in who is missing socks, did not iron a shirt, or has an outfit more suited for the clubs than the office – I think of the disadvantage the student has just self-inflicted.
A good article that spells out some basics to appropriate dress for interviews can be found:
The most common question I encounter is about how formal one should dress. My advice is to know the company and dress slightly higher than what is worn at the office. For example, Abercrombie and Fitch employees wear jeans and flannel shirts – that is fine for the interview but the outfit better be clean, no wrinkles and up to date in style (we are talking about fashion retail). For a company that is business casual at the office, I still recommend going a step above and wearing a suit to the interview.
It is always easier to dress down if you get the interview and realize you are overdressed than the reverse!