This combination of a brown bomber jacket and a crew-neck sweater is irrefutable proof that a safe casual ensemble can still look really interesting. Avoid looking too casual by finishing off with brown suede brogue boots. In the winter season, when functionality is imperative, it can be easy to surrender to a less-than-stylish ensemble in the name of functionality. This ensemble, however, is a shining example that you can actually stay comfy and remain stylish at the same time in the winter season.