Zegna * Siena Flex Derby Shoes – New Arrival A perfect fusion of business and casual style. Crafted from imported embossed crocodile-pattern cowhide for a bold, luxurious finish. Lined with premium full-grain calf leather for superior comfort. Features a genuine leather washed outsole for durability and flexibility. The Siena Flex series is known for its versatility and refined style — ideal for modern lifestyles. Available in elegant black and deep brown shades with a sleek pointed toe for a sophisticated look.