For a laid-back look, make a navy cardigan and navy jeans your outfit choice — these two pieces play nicely together. Make a bit more effort now and introduce brown leather casual boots to this getup. During the winter months, when practicality is paramount, it can be easy to settle for a less-than-stylish look. But this look is a vivid example that you can actually stay comfortable and remain equally stylish in the winter months. Ideal to tell people that even as a man in his twenties you're confident enough to hold your own in the sartorial department.