Marry a beige crew-neck sweater with a grey suit for rugged sophistication with a fashionable spin. Add a pair of dark brown suede derby shoes to the equation and ta-da: the getup is complete. Nothing like a kick-ass combo to cheer up a gloomy fall day. As a guy in his 30s, you want to start dressing in a more sophisticated manner. That's when looks like this come in very useful.