The brown 1461 3 Eyelet Crazy Horse men's lace up shoes' upper is made of a natural - type oil finished leather, with a worn, distressed appearance. These derby shoes stay true to their past and feature classic 3-eyelet fastening and the iconic yellow welt stitch. The ultra-comfortable Dr. Martens Air Bouncing slip resistant sole provides great comfort and cushioning and is oil, fat, petrol and alkali resistant. These lace-ups flats are Goodyear-welted footwear, meaning the upper and sole are heat-sealed and sewn together. In addition the removable Air Wair insole and leather lining provide further cushioning to make these casual style flats even more comfortable.