So as you can see, it doesn't require that much effort for a man to look effortlessly polished. Wear a burgundy crew-neck t-shirt with dress pants and be sure you'll look incredibly stylish. Introduce a pair of black leather derby shoes to the equation to completely change up the ensemble. No doubt, it's easier to work through a super hot summer day in a fresh getup like this one. Rest assured this ensemble is something you can totally wear as a 20-year-old gentleman.