Cool tones, colder moves. The AJ4 gets an icy upgrade with smooth leather and pops of colours that freeze the flex in all the right ways. Classic Air, bold attitude—just the way you like it. Benefits * The full-grain and synthetic leathers in the upper make for a durable shoe. * Free-floating eyestays at the ankle pull down over your foot when you lace up. * Nike Air technology absorbs impact for cushioning with every step. * Rubber in the outsole gives you everyday traction.