You'll be surprised at how easy it is for any gentleman to throw together this classic and casual ensemble. Just a green puffer jacket combined with jeans. Bring a more casual twist to an otherwise dressy outfit with a pair of green-yellow low top sneakers. When it's one of those bleak fall days, sometimes only a neat look like this one can get you to face the outside world. Those who wonder how to dress well and look good as you make your way through your 20s, you have your answer.