As you can see, looking on-trend doesn't require that much effort. Reach for a navy turtleneck and grey check dress pants and be sure you'll look incredibly stylish. When it comes to footwear, go for something on the more elegant end of the spectrum by rocking a pair of dark brown leather loafers. If you want to portray maturity as a 20-year-old guy, an ensemble like this is a fantastic option.