This off-duty combination of a white and red print sweatshirt and khaki chinos is super easy to throw together without a second thought, helping you look awesome and ready for anything without spending a ton of time rummaging through your wardrobe. Complement your getup with grey athletic shoes to infuse a dash of stylish effortlessness into this look. Casual getups for 20-year-old men aren't actually that hard, as you can see.