The Concepts x adidas ZX 9000 Boston Marathon will be the latest installment to the adidas Originals A-ZX series. The letter C is in collaboration with Boston-based boutique Concepts. Dubbed the Boston Marathon, this adidas ZX 9000 is inspired by the mylar recovery blankets given to runners as they cross the finish line. The shoe’s upper comes with an all over mylar material accented with hits of Navy, Red, and White. The shoes also come with co-branding on the tongues, lace caps, and sockliners.