Ahead of its time in '99, the Air Max Sunder returns—and it still ticks all the boxes. From the neoprene-like upper to the zip closure, this innovative sneaker continues to break the mould. Unzip the shroud to reveal "6453", a nod to the last four digits 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 * Foam midsole * Rubber outsole * Not intended for use as personal protective equipment (PPE) Nike Air Max Origins Revolutionary Air technology first made its way into Nike footwear in 1978. In 1987, the Air Max 1 debuted with visible Air technology in its heel, allowing fans more than just the feel of Air cushioning—suddenly they could see it. Since then, next-generation Air Max shoes have become a hit with athletes and collectors by offering striking colour combinations and reliable, lightweight cushioning.