Marrying a tan shearling jacket with jeans is a nice option for a casual but seriously stylish getup. Beige work boots are guaranteed to give a sense of stylish casualness to your getup. In the colder months, when functionality is above all, it can be easy to surrender to a less-than-stylish ensemble in the name of functionality. But this ensemble is a good illustration that you totally can stay cozy and remain stylish at the same time during the colder months. A good, less conservative combo for gentlemen in their 40s.