Looks always do matters in every aspect of life, especially it affects the important occasions of our life. And if it is for a job interview then you need to be concern about the looks and outfits. Your choice of an outfit always reflects your personality and taste. The dress options will depend on the type of job. You need to choose the outfits which will create a great impression on your interview, but you need to keep in your mind about the workplace whether it is for a formal corporate company or casual start-up or informal summer job/intern. 

The first impression a potential employee gets from an applicant is the most important one because the first judgment you are going to get is from your appearance. This is why you should be very careful about the outfit you select for an interview. Generally, you must look professional whether it is for men or women. Men should wear a suit jacket and slacks with a shirt and a tie, or you can go for a sweater and button-down. As for women, a professional look might mean a blouse and dress pants or a statement dress. You can also add some accessories like a watch and a professional-looking shoe. As you should be concern about the outfit, you should also need to think about the color of your dress. Your interview outfit should not be too bright or flashy. It might distract the hiring manager, which can leave a bad impact. 

If the job interview is for an informal work environment, then you should pick a business casual outfit. Because they are less formal than suit yet they are more professional and polished than other casual outfits. Although make sure before assuming that business casual outfits will be applicable for the interview or not, contact the administrative coordinator or any other concerned people for advice.