A white crew-neck sweater and olive silk tapered pants are essential in a stylish casual arsenal. Want to go all out when it comes to shoes? Complete this outfit with black leather ankle boots. During the winter season, when warmth is the priority, it can be easy to settle for a less-than-stylish outfit in the name of convenience. This outfit, however, is a good illustration that you can actually stay warm and remain equally stylish in the winter season.