A grey puffer jacket and beige cargo pants matched together are a sartorial dream for those who prefer laid-back and cool styles. To introduce a hint of stylish casualness to this outfit, complete your ensemble with beige leather high top sneakers. This outfit is a savvy choice if you're picking out a standout look for awkward fall weather. Gentlemen who wonder how to pull off modern casual outfits as you make it through your 20s, you have your answer.