This combination of a black turtleneck and black chinos is on the casual side yet it's also seriously stylish and seriously sharp. Make this look slightly sleeker by finishing with black leather chelsea boots. In the colder months, when warmth is top priority, it can be easy to surrender to a less-than-stylish outfit. However, this outfit is a good illustration that you totally can stay comfortable and remain equally stylish during the colder months. As you can see here this look is something you can totally wear as a 20-something gent.