This combination of a grey overcoat and a brown blazer is a safe bet when you need to look like a connoisseur of modern men's style. Introduce black and white athletic shoes to your getup to add a touch of stylish effortlessness to your getup. As you can see here, it's very easy to look awesome and stay warm when colder weather hits, thanks to this getup. This one is a great yet age-appropriate getup for a 40-year-old guy.