If you like relaxed casual style, why not consider this combination of a white crew-neck t-shirt and navy jeans? For something more on the daring side to finish this ensemble, complete your getup with a pair of white and black leather high top sneakers. During the colder months, when functionality is key, it can be easy to surrender to a less-than-stylish ensemble in the name of practicality. This ensemble, however, is a striking example that you can actually stay toasty and remain equally stylish during the colder months. Definitely a good choice when it comes to fashion for 40-year-old gents.