Yellowstone S5 John Dutton Black Wool Vest Working on a ranch requires a high level of versatility and sturdiness. It is the same case with both workers on the ranch and their clothing. John Dutton, the owner of the Dutton ranch is nothing less than a highly useful person on the ranch. His clothing depicts the same energy. The John Dutton Black Vest Yellowstone is a highly versatile piece of outerwear from the impressive wardrobe of John Dutton. The vest has an outer shell made of wool, with a zipper closure and a stand-up style collar. There are two pockets on the front of the vest, giving it a more practical look. The inner shell of the vest has a quilted viscose lining with two pockets for extra storage space.