To look like a British gentleman with a good deal of class, team a tan trenchcoat with a white vertical striped dress shirt. In the footwear department, go for something on the relaxed end of the spectrum and complement your outfit with a pair of brown suede high top sneakers. As you head into your 30s, you want to start dressing like an adult. If that's the case, combos like this are a foolproof option.