This off-duty pairing of a black denim jacket and black chinos will catch attention wherever you go. Rounding off with charcoal suede double monks is a surefire way to add some extra depth to your ensemble. As you can see here, this ensemble is a really nice choice, especially for transeasonal weather, when the temperatures are dipping. As a 30-year-old gentleman, you want to start dressing like a grown-up. That's when inspiration like this comes in handy.