This combo of a beige houndstooth blazer and navy chinos is a must-try casually neat look for any modern man. If you want to break out of the mold a little, add brown leather oxford shoes to the equation. So as you can see, it's a killer, not to mention spring-appropriate, combo to have in your seasonal rotation. As a man in his thirties, you probably want to start dressing like an adult. In this case, combos like this come in useful.