If it's ease and functionality that you're seeking in an outfit, make a tunic and navy jeans your outfit choice. Dial up the formality of your outfit a bit by slipping into a pair of tan cutout leather ankle boots. During winter, when warmth is everything, it can be easy to settle for a less-than-stylish look. But this look is a vivid example that you can actually stay warm and remain equally seriously stylish during winter.