<p>A zippered shroud, metallic colorway and reflective panels along the sides ensure Nike's iconic Air Max always stays ahead of the sneaker curve in this feature-rich new iteration. The visible bubbles of Max Air cushioning play counterpoint to a hidden sneakerhead detail: the numbers 6453 under the zipper, representing the last four digits of Nike's office numbers around the world and N-I-K-E on a phone keypad.</p>