I get the feeling that pushing the boundaries irritates some of my more staid readers, but I feel the older man has to keep experimenting.
Here's a good place to start - these Ami blue suede brogues from Mr Porter are just the thing to cut a dash in with shorts or that white linen suit - if the weather ever warms up.
Go on, give it a try! At Mr Porter here (but I wish Mr Porter would use British terms on its British site - please drop 'wingtips', 'tuxedo' etc).