A tobacco shearling coat and blue skinny jeans are both versatile menswear essentials that will integrate perfectly within your daily routine. If you need to effortlessly perk up your ensemble with one item, complement this getup with black leather casual boots. While it can be a bit challenging to stay fashionable in below-freezing temps, it's getups like this that prove it's totally possible. Those who are curious how to rock cool casual style as you go into your 30s, you have your answer.