To identify a genuine leather jacket, make sure to check the texture. The real leather has a natural grain, slight imperfections and a soft, flexible feel. On the other hand, fake leather often looks uniform and plasticky. When looking for the real Marty Supreme Merch, do a smell test as it can tell you. The real leather has a rich, earthy scent, whereas faux leather smells like chemicals or plastic. Examine the edges: Real leather is rough while synthetic leather is smooth or coated. Make sure to press a finger as real leather wrinkles naturally. On the other hand, fake leather springs back.