The non-suit look

If you want to wear a suit, as mentioned previously, the jacket and pant have to be exactly the same. However if you do not want to go for the suit look, then make sure the jacket and trousers are clearly different in terms of color. Don't wear like a charcoal gray jacket and black pant, they are too similar in color and will look as thought you were indeed trying to wear a suit; and because they are not the same, it means you're wearing a fake suit. Pair up a light colored gray jacket with black pant, or navy jacket with khakis; the idea here is that both the jacket and pant have to be noticeably different.

Learn from Matthew Goode: