So as you can see, it doesn't require that much effort for a man to look dapper. Just opt for a suit and a v-neck sweater and be sure you'll look amazing. The whole outfit comes together when you complement this outfit with a pair of black leather derby shoes. This outfit is an obvious option when it comes to a killer look that will take you from summer to fall. This outfit illustrates that looking stylish at 20 is not that hard.