You'll be amazed at how very easy it is to throw together this refined menswear style. Just a navy cardigan and charcoal wool dress pants. Let your styling chops truly shine by complementing this outfit with a pair of casual boots. During the colder months, when warmth is imperative, it can be easy to settle for a less-than-stylish outfit in the name of convenience. This outfit, however, is a bright example that you can actually stay warm and remain stylish at the same time during the colder months. As you can see, as a 40-something gentleman, you have a vast array of outfit options.