If you don't take your style lightly, go for polished style in a camel overcoat and beige chinos. Feeling brave today? Mix things up by slipping into a pair of tan athletic shoes. It's a wonderful pick when it comes to piecing together a standout look for awkward transition weather. As a 30-year-old, you probably want to start dressing maturely. In this case, inspiration like this comes in very useful.