Goodyear welt stitching Good abrasion resistance Slip resistance ; The upper and sole are heat-sealed and sewn together, not merely glued like many footwear constructions Two tone synthetic leather upper Care Instructions: Clean Away dirt using a damp cloth, allow to dry apply a Dr.Martens clear or colour wax based shoe polish as appropriate to restore shine as desired. Do not use any leather cleaners on this leather they could damage the 2 tone effect.