Traditionally they are made of steel, but other materials like fiberglass and kevlar can be used. land for sale in highgate, st mary jamaica . PU leather, on the other hand, is not as durable and will crack and peel over time. The amount of leather in the actual mix can vary greatly (from 10%-90%), and thus affect the functional and aesthetic properties of the finished product. As the original bootmaker of the Roper cowboy boot, Justin Boots knows exactly what it takes to design a genuine, high-quality Roper. Double face leather, also referred to as double sided leather, is a type of leather that has two uniquely finished sides. And in goodyear welted shoes, this outsole can be replaced when it wears thin, increasing the life expectancy of your favorite footwear. They are one of the most popular types of animal leather sought. When the leather pieces are flexed and moved, the surface catches the light in different ways, do to the reflections on the oils and waxes.