If you feel more confident in functional clothes, you'll love this dapper combination of a dark green crew-neck t-shirt and olive chinos. If you need to easily up the style ante of this ensemble with a pair of shoes, add a pair of brown suede desert boots to your ensemble. There's no nicer way to cheer up a bleak fall afternoon than a neat getup like this one. Men who are curious how to dress well as you make it through your 20s, you have your answer.