Ritza Tiger Thread is manufactured by Julius Koch, a company that got its start in 1895 and has since grown to offer high-end textile solutions including braided sewing thread. Tiger Thread is braided using yarns that have been specially developed to stand up to the demands of leatherwork. Boasting a flat-braided, 100% polyester design, this leather hand sewing thread is waxed for the perfect touch of stiffness, making it a gamechanger for both beginner and more advanced leathercrafters.