This smart combo of a dark green overcoat and khaki chinos is very easy to put together in no time flat, helping you look stylish and prepared for anything without spending a ton of time combing through your closet. When it comes to shoes, go for something on the laid-back end of the spectrum with a pair of charcoal canvas low top sneakers. This combo illustrates how to succeed in the classic and casual style department as a 20-something gent.