If you love classic pairings, then you'll love this pairing of a white and black shirt jacket and a crew-neck t-shirt. Rounding off with white canvas low top sneakers is a guaranteed way to introduce a more casual feel to your outfit. This one is a viable option if you're crafting a well-coordinated outfit for unpredictable fall weather. Gentlemen who are curious how to pull off modern casual looks as you go through your 20s, you have your answer.