A crew-neck sweater and a white dress shirt are the ideal way to introduce extra elegance into your current casual fashion mix. A trendy pair of black leather work boots is a simple way to inject an air of stylish effortlessness into your outfit. In the winter season, when warmth is above all, it can be easy to surrender to a less-than-stylish getup in the name of functionality. But this getup is a striking illustration that you can actually stay cozy and remain equally stylish in the winter season. As you see here, as a 20-year-old, you have a wide range of sartorial options.