What is professional clothing?

In my opinion, professional apparel is something that you would wear to church. When you are going to an interview you aren't going to dress the way you do when you go to the club with your friends. You need to cover up and be conservative. You don't want to show to much skin. Wear slacks or a long skirt. Wear a shirt that covers your shoulders, belly, and cleavage. Wear closed toed shoes that don't have to high of a heel. Keep your outfit simple and classy.