For an outfit that's street-style-worthy and casually smart, choose a white crew-neck t-shirt and charcoal wool dress pants. Brown suede desert boots will add edginess to an otherwise sober outfit. This is a modern and age-appropriate pairing for mature gents.
A white crew-neck t-shirt and charcoal wool dress pants are a good combo that will earn you the proper amount of attention. Not sure how to finish your getup? Wear a pair of burgundy leather derby shoes to amp it up. Rest assured this ensemble is something you can totally wear as a guy in his fifties.