Demonstrate your expertise in menswear styling by opting for this casual combination of a brown shearling coat and blue ripped skinny jeans. For something more on the dressier side to round off your look, introduce a pair of black leather casual boots to the equation. During winter, when comfort is crucial, it can be easy to settle for a less-than-stylish getup. This getup, however, is a striking example that you totally can stay warm and remain equally stylish in winter. Overall, a great demonstration of off-duty fashion for 30-year-old guys.