Ahead of its time in '99, the Air Max Sunder returns—and it still ticks all the boxes. From the neoprene upper to the zip closure, this innovative sneaker continues to break the mould. Unzip the shroud to reveal "6453", a nod to the last 4 numbers of Nike's office numbers around the world, which spell out N-I-K-E on the keypad. Benefits * The neoprene upper is smooth and stretchy. * The zip closure hides traditional lacing for a sleek look while providing a secure fit. * The Max Air cushioning in the heel and Nike Air in the forefoot add exceptional bounce and comfort. Product details * Reflective design panels * Foam midsole * Rubber outsole