This casual combination of a navy denim shirt and a white crew-neck t-shirt is super easy to put together without a second thought, helping you look sharp and prepared for anything without spending a ton of time going through your wardrobe. Complement your ensemble with dark purple leather derby shoes to effortlessly turn up the fashion factor of your look. This here is hard proof that it is actually possible to survive the sweltering heat, all while looking fresh and breezy. When it comes to fashion tips for guys in their 40s, this getup is a good look on almost any gent.