<ul> <li>Real and synthetic leather are durable and give a classic feel like the original Dunk.</li> <li>Collar and tongue, along with the perforations above the toe area, give an iconic look true to the original.</li> <li>The speckles in the rubber outsole are made from Nike Grind, which is recycled waste (i.e., the scraps) from the footwear manufacturing process.​</li> </ul>