Made for big kids, the RapidaLux S and L J 'Core Black' applies an essential color scheme to a lifestyle runner supported by a full-length Boost midsole. Up top, the lightweight build combines a breathable black mesh base with matching black suede overlays at the toe and heel. The monochromatic finish is disrupted by the sneaker’s contrasting white branding elements, including floating three-stripes on the quarter panel.