These boots are built from Patent Lamper with all our original markings locked in: yellow stitching, grooved sides and an AirWair heel loop. Built for the next generation of DM's wearers, they have a side zip for easy access. Patent Lamper is a fine-grained leather, coated to give a high shine, glossy finish. Clean with a damp cloth and restore its shine with Dr. Martens Patent Cleaner Flexible cemented sole construction for growing feet