For an outfit that's pared-down but can be flaunted in plenty of different ways, reach for a brown fair isle shawl cardigan and black jeans. A trendy pair of brown leather derby shoes is the most effective way to give a sense of refinement to this getup. As you can see, it's extremely easy to look awesome and stay warm when fall arrives, all thanks to looks like this one. A safe bet for 30-something guys in search of a more professional look.