For a look that's sophisticated and absolutely GQ-worthy, wear a dress shirt with beige dress pants. You could perhaps get a bit experimental on the shoe front and tone down this outfit by slipping into slip-on sneakers. Needless to say, it's easier to work through a hot hot weather day in a summery getup like this one. If you're wondering how you should dress as a middle-aged gentleman, this getup is a good source of inspiration.