This outfit with a grey knit wool turtleneck and navy jeans isn't hard to create and is easy to change. Why not add a pair of black suede derby shoes to the equation for an added touch of style? So as you can see, this ensemble is a vivid example that good style and dressing smartly for the winter season are not mutually exclusive. Ideal to show the world that even as a 20-year-old man you're confident enough to hold your own in the outfit department.