adidas Big Kids Unisex Originals ZX Flux Running Shoes Solar Yellow/Black/Running White ( synthetic leather The ZX Flux gets a updated look with the look of a special Xeno material. A newly developed reflective material that in natural daylight appears black with a faint iridescent quality. The special effect comes when direct light or a camera flash comes in contact. The base of the shoe is colorful with the scale outlines going the Xeno touch. All sizes are listed in Youth Grade School sizes