adidas released the adidas ZX 9000 Concepts as part of its A-ZX series, which featured a new sneaker for every letter of the alphabet. Since Concepts is based in Boston, this shoe offers shimmering material that pays tribute to the Boston Marathon. Runners receive an emergency blanket made of a similar shiny material when they complete the marathon.

Instead of the traditional leather, the adidas ZX 9000 Concepts offers a shimmering, reflective upper that looks like a sheet of foil. The rest of the shoe uses red, white and navy blue to complement the upper without drawing attention from the bright, shiny material. Each side of the shoe is different; the left side has three stripes whereas the right side has one stripe and a red patch on the midsole. A navy blue adidas logo appears on the tongue.

adidas ZX 9000 Concepts released in September of 2020 and retailed for $140.