A charcoal wool harrington jacket and brown chinos are must-have menswear pieces to have in your casual box. And if you need to easily dress up your outfit with one single item, add a pair of black leather loafers to this ensemble. When it's one of those dull fall days, sometimes only a neat ensemble like this one can brighten it up. If you're in your mid-20s, take inspiration from getups like this to take a more mature approach to your personal style.