This off-duty pairing of an olive parka and light blue jeans is a surefire option when you need to look nice but have no extra time to dress up. Black leather chelsea boots are an effortless way to add a little kick to the outfit. So as you can see here, it's a dapper, not to mention season-appropriate, outfit to have in your transitional arsenal. Guys who wonder how to rock cool casual style in your early 20s, you have your answer.