Each pair of these reflective adizero Primeknit Boosts features a total of 1,267 meters (approximately 4,156 feet) worth of reflective yarn. adidas have also capped the total pairs for the intitial launch of these kicks at 1,267 pairs. Featuring an air mesh, textile and synthetic upper for breathable support, lightweight EVA cushions every landing, while a heel cup stabilizes your stride. Finished with a durable ADIWEAR™ outsole, these limited edition runners will be available Friday December 19th in store at our Chinatown and Toronto locations. Pairs that remain after our initial in store release will be made available online later in the day.