So as you can see, looking effortlessly sleek doesn't require that much effort. Just try teaming a navy and white crew-neck t-shirt with a black suit and be sure you'll look awesome. Let your sartorial expertise truly shine by rounding off this outfit with low top sneakers. Come baking hot sunny days you want to feel cool and on-trend –– this outfit is ideal for this time. As a teenage boy, you're sure to like this combo.