This look with a navy knit wool blazer and olive cargo pants isn't a hard one to score and is easy to change. For something more on the dressier side to complement this getup, complement your ensemble with green leather oxford shoes. When you're having one of those dreary fall days, sometimes only a killer look like this one can get you to face the outside world. As you mature into your 30s, you probably want to start dressing more maturely. That's when combinations like this are a tested option.