The material used in the fabrication of yellowstone colby cowboy jacket is pure wool, making it a good choice. It has a delicate viscose lining on the inside giving the jacket extra warmth and coziness. It’s pieced together with a front buttoned closure, shirt style collar, one chest pocket, two side waist pockets and long sleeves attached with open hem cuffs. This yellowstone denim richards wool jacket is truly a masterpiece because of its expediency of use.