Make a white long sleeve shirt and white chinos your outfit choice if you seek to look casually cool without putting in too much time. Want to go easy on the shoe front? Complement your ensemble with white low top sneakers for the day. Keep this combo in your head come warmer days, and we guarantee you'll save time getting ready on more than one occasion. Relaxed casual ensembles for stylish 60-year-old guys aren't actually that hard, as you can see here.