If it's ease and functionality that you love in menswear, make a black leather bomber jacket and a blue chambray short sleeve shirt your outfit choice. Rounding off with dark brown leather casual boots is a surefire way to bring a bit of fanciness to your look. As you can see, it's very easy to look awesome and stay comfortable come chillier weather, all thanks to looks like this one. This is a good-looking yet age-appropriate outfit for 30-year-old gentlemen.