A light blue long sleeve shirt and grey wool chinos are the kind of a no-brainer casual combination that you need when you have no extra time to dress up. If you want to effortlessly dress up your outfit with one single item, complete your ensemble with a pair of dark brown leather double monks. Can you see how super easy it is to look seriously stylish and stay snug come colder weather, thanks to this outfit? This combination is most probably what you're looking for as a 30-something gent.