This combination of a crew-neck sweater and a long sleeve shirt makes for the perfect base for a great number of stylish combos. Go off the beaten path and shake up your ensemble by finishing off with a pair of white leather flip flops. There are a multitude of ways to look neat and survive the baking hot weather, and that's one of them. This pairing suggests how to keep killing it in casual dressing as a 60-year-old gent.