Here's a detail shot, no jacket. One of my favorite things about a three piece suit is the versatility a third piece adds. You can switch things up at the office by rocking the vest with a shirt and tie like so. But on the weekend/casual Friday try going sans tie, a couple shirt buttons undone, vest, jacket, washed jeans and Chelsea boots for a more upscale yet laid back look. Just don't forget to keep that last vest button undone.