The way men dress this days is really impressive mostly on the casual wear but on is that men wants to do the casual wear always with the suit but being casual is not about the suit it is how you create your own style out of being formal. Take a look at the first guy he is not in suit but he really look perfectly casual am not saying being on suit to do the casual thing does not work, but all all am sayings is that you do not have to cut your head over wear a blazer or a suit to look so casual being in suit is really cool but can also do it with the suit. So go out there and create your own style in the way you feel and be casual.