Make a grey crew-neck sweater and a yellow long sleeve shirt your outfit choice for a casual ensemble with a modern take. Let your styling chops truly shine by finishing off this look with a pair of dark brown leather desert boots. During the winter season, when warmth is imperative, it can be easy to surrender to a less-than-stylish outfit. However, this outfit is a shining example that you can actually stay snug and remain equally stylish during the winter season.