Nike Dunk Low Retro Gym Red EU 40 The Nike Dunk Low USC 'Gym Red' (DD1391-602) is dressed in the school colors of the University of Southern California. The Nike Dunk has a base of smooth white leather that is visible on the toe pocket, midsection and heel. The upper is also lined with leather overlays in the color 'Gym Red'. Yellow and gold UNC colors are featured on the tongue label and heel tab branding. The pair is completed with a white midsole and a red outsole.