Prove that you do smart casual men's fashion like no-one else in a blazer and charcoal jeans. Work boots will bring a dose of stylish casualness to an otherwise classic look. In the colder months, when practicality is imperative, it can be easy to settle for a less-than-stylish outfit in the name of convenience. But this outfit is a striking illustration that you totally can stay toasty and remain stylish at the same time during the colder months. Men who are curious how to stay stylish as you get into your 40s, you have your answer.