Reach for a denim jacket and a navy and green long sleeve shirt to create a casual and cool look. To give this look a smarter finish, why not complement this look with brown leather derby shoes? So if it's a boiling hot day and you want to look sharp without putting in too much work, this getup will do the job in no time flat. This combination illustrates that even well into your 60s your outfit options are still pretty much limitless.