This relaxed casual combo of a white crew-neck t-shirt and a navy crew-neck t-shirt is a never-failing option when you need to look good in a flash. Up the classiness of your look a bit by slipping into a pair of black leather slip-on sneakers. As you can see, this ensemble is a really savvy pick, especially for summer-to-fall weather, when the mercury is falling. Perfect if you're on the lookout for some seriously inspiring style for over-30 gentlemen.