We’ve gone into the lab to rethink everything in the Nike Air Max 2021. We put our best people on it, testing out a new Air unit with a collapsible cage that makes your feet bounce like never before. Mixing our most important features—lightweight, durable and revolutionary—we've designed these kicks with the planet in mind, too. It’s the definition of innovation for the next generation of Air Max. Soft foam underfoot provides lightweight cushioning. A rubber sole provides durable traction. Pull tabs on heel and tongue make it easy to pull the shoe on and off.