A denim jacket and navy jeans are the kind of a winning off-duty ensemble that you so desperately need when you have no extra time to spare. You could perhaps get a bit experimental on the shoe front and complete your getup with black athletic shoes. As you can see, this ensemble is a really nice choice, especially for weird transition weather, when the temperature is dropping. Perfect if you're scouting for some amazingly inspiring relaxed casual style for gentlemen in their 30s.