Part of the reinvented core collection greasy suedepu is a classic suede with a greasy coatingthe original dr martens air cushioned sole providing underfoot comfort and durabilityit is oil and fat resistant tough and offers good abrasion and slip resistancethis is a goodyear welted product the upper and sole are sewn together not merely glued like many footwear constructionsthis together with the z welt stitch and heat sealing process makes it unique to dr martens