As the world's foremost manufacturer of heavy equipment, Cat earthmovers are known around the world as a symbol of honest work, strength and integrity. Cat Footwear makes boots and shoes based on these same principals. The brand has evolved from work boots into a range of industrial and casual footwear built with the sole purpose of staying true to their original goal--creating genuine, hard-working boots and shoes. Product Description. Waterproof full grain leather upper, Nylon mesh lining, Removable EVA Sock. Liner, Strobel Construction, Rubber outsole.