The Australian made 321 Hornet features a full grain leather upper in a closed back design with a whole panel over the front of the foot, incorporating a padded comfort insert. Rossi’s Endura air cushion comfort sole which consists of a rubber outer tread that completely wraps up the side wall to protect the polyurethane air cushion comfort midsole against animal fats and water with an efficient tread which by design and compound offers excellent slip resistance on wet surfaces.