For a casually sleek ensemble, try pairing a shirt jacket with a navy turtleneck — these items work nicely together. A good pair of white canvas low top sneakers is a simple way to upgrade your ensemble. So if you're scouting for a look that's sharp but also feels totally spring-ready, this just might be it. A good combination to make you a sharp-dressed man in his 40s, rather than just a man in his 40s.