Mens Julius Marlow Jet Work Leather Black Patent Formal Lace Up ShoesSometimes the evening just calls for a black patent shoe. As part of our best selling J series construction, Jet is the ultimate patent Derby; just add your tux. Supple full grain patent leather upper feels soft against the foot. A rubber outsole increases traction underfoot to prevent slipping. Leather linings wrap the foot in comfort and provide moisture wicking benefits to eliminate sweat and odour.