For a casually stylish look, pair a white and navy dress shirt with jeans — these pieces work nicely together. On the shoe front, go for something on the casual end of the spectrum with charcoal athletic shoes. All in all, a nice idea when it comes to style for older guys.
A white and navy dress shirt looks especially stylish when paired with jeans. Don't know how to round off? Introduce a pair of tan suede desert boots to the mix for a more casual finish. Ensembles like this have a refined air that suit 50-year-old gentlemen very well.