As you can see here, it doesn't require that much effort for a man to look casually neat. Just try teaming a blazer with black chinos and be sure you'll look incredibly stylish. A pair of desert boots will pull your full outfit together. A great summer wear, you can rock a version of this outfit throughout the season. As you're transitioning from your 20s to your 30s, you probably want to start dressing like an adult. That's when combos like this come in very useful.