This pairing of a navy denim jacket and a grey long sleeve shirt is a good menswear style for off duty. Complete this look with a pair of dark brown leather desert boots and the whole ensemble will come together brilliantly. During the winter months, when practicality is imperative, it can be easy to surrender to a less-than-stylish look in the name of functionality. However, this look is a striking illustration that you can actually stay comfy and remain stylish during the winter months.