For an outfit that's worthy of a modern trendsetting gentleman and casually sleek, pair a navy blazer with navy chinos. Dial down the casualness of your outfit by slipping into dark brown suede loafers. So when summer is fading away and fall is taking its place, you may find this ensemble your uniform. As you reach your 30s, you probably want to start dressing like a grown man. If that's the case, getups like this prove useful as a source of inspiration.