A blue crew-neck t-shirt and navy sports shorts are the perfect foundation for a countless number of combos. As for footwear, introduce a pair of athletic shoes to your look. Perfect if you're in search of some seriously inspiring casual style for gentlemen in their sixties.
To achieve a laid-back ensemble with a modern finish, opt for a blue crew-neck t-shirt and black chinos. You could perhaps get a bit experimental on the shoe front and play down your ensemble by rounding off with a pair of athletic shoes. This combo shows that even after sixty your outfit options are still pretty much limitless.