For an ensemble that's worthy of a modern fashionable man and casually refined, wear a double breasted blazer and a burgundy crew-neck t-shirt. A great pair of tan suede low top sneakers is an effortless way to inject a touch of stylish effortlessness into your outfit. Clearly, it's easier to work through a boiling hot warm weather day in a easy and breezy outfit such as this one. Overall, a great example of smart casual style for gents in their sixties.