For an outfit that's street-style-worthy and effortlessly sleek, go for an overcoat and a black and white crew-neck t-shirt. To add some extra classiness to this outfit, add a pair of black leather chelsea boots. In the winter season, when comfort is paramount, it can be easy to surrender to a less-than-stylish ensemble in the name of functionality. This ensemble, however, is a vivid example that you totally can stay toasty and remain stylish during the winter season.