Teaming a white and navy sweater dress with black leather leggings is a nice idea for a casual yet seriously stylish outfit. And if you need to easily dress up this ensemble with shoes, complement your getup with a pair of ankle boots. During the winter months, when warmth is key, it can be easy to settle for a less-than-stylish outfit. This outfit, however, is a practical illustration that you can actually stay comfy and remain equally stylish in the winter months.