If you put practicality above all, consider teaming a beige crew-neck sweater with jeans. When not sure about the footwear, stick to a pair of white print leather low top sneakers. Casual outfits for stylish men in their 20s aren't actually that hard, as you can see.
Showcase your skills in men's fashion by wearing this casual combo of a beige crew-neck sweater and jeans. And if you wish to immediately perk up your look with one single piece, why not complete this look with a pair of beige suede chelsea boots? Now that's how you keep it casual in the fashion department in your twenties.