Pair a black overcoat with a black long sleeve t-shirt to don a sleek and classy outfit. To introduce some extra zing to this look, complement this ensemble with a pair of black suede chelsea boots. As you can see here, this combo is a really smart pick, especially for summer-to-fall weather, when the temperature is dropping. As you're heading into your 30s, you probably want to start dressing like a grown man. That's when inspo like this comes in handy.