'Tis the season to get out the coats, scarves, earmuffs and warm socks. But maybe those socks made from sheep's wool just aren't warm enough? Introducing alpaca fiber or "the fiber of the gods" as the Incans called it. It's a luxury fiber similar to cashmere, but has a hollow core that gives it an extra insulating property, which makes it lighter and warmer. On Sounds Good, we meet Kathy Tinkham of Red Roof Ranch Alpacas in Trigg County and learn how she got into raising alpacas and some of the items in her store that will keep you warm this winter season.