Such essentials as a short sleeve shirt and a dark green crew-neck t-shirt are the ideal way to introduce effortless cool into your daily casual rotation. Amp up the dressiness of this look a bit by wearing a pair of black leather derby shoes. This here is proof that it is actually possible to survive the summer heat and look fresh and clean while doing so. If you're often not sure how to dress your age but also look fashionable, this ensemble is a great example.