This combination of a tan dress shirt and a grey suit embodies sophistication and effortless class. Get a little creative when it comes to footwear and complement your look with derby shoes. As you know, the key to getting through the hottest time of year is opting for light and breezy combinations like this one. As you're moving through your late 20s, you want to start dressing in a more refined manner. In this case, ensembles like this are a real lifesaver.