A denim shirt and black skinny jeans are the kind of a no-brainer casual outfit that you need when you have no time to dress up. Balance out this outfit with a more sophisticated kind of footwear, such as this pair of brown oxford shoes. As you can see here, it's very easy to look stylish and stay comfortable when chillier weather comes, all thanks to getups like this one. Wondering how to master casual looks after 30? This combination is the perfect answer.