If you like off-duty looks, why not opt for this combo of a tan crew-neck sweater and beige corduroy chinos? A nice pair of brown leather casual boots is an effortless way to bring an extra touch of polish to your look. In the colder months, when practicality is everything, it can be easy to surrender to a less-than-stylish ensemble. This ensemble, however, is a striking example that you can actually stay warm and remain equally stylish during the colder months. This ensemble demonstrates how to score in the casual style department as a 20-something guy.