Go for a pared down yet stylish option by opting for a black overcoat and a grey v-neck sweater. If you want to effortlessly rev up this getup with one piece, why not complete this outfit with black leather double monks? So as you can see, this look is a really savvy pick, especially for unpredictable fall weather, when the temperature is getting lower. This one is a nice and age-appropriate combo for 30-something Millennial gents.