The Nike Dunk Low Free 99 Black has a white midsole and an orange sole, complemented by a mix of blue, light green, yellow and pastel pink colors based on the black upper. The Swoosh has been given the same chocolate brown color on both sides. The special feature of the shoe is that the details of the right and left pair are different colors. FREE.99 is an American term that refers to merchants who use non-rounded pricing. This mark is also displayed on the insole of the sneaker.