Nike Air Max 2021 Big Kids' Shoes NEXT ERA OF AIR. We’ve gone into the lab to rethink everything Air in the Nike Air Max 2021. First, we recycled scraps to make these at least 20% recycled materials by weight. Then we reimagined the Air unit for super cushy steps never felt before. What does this mean for you? Lightweight, durable and revolutionary comfort—it’s the definition of innovation for the next generation of Air Max. Innovative Comfort The revamped Air unit has a new shape and works with a collapsible TPU cage for a crazy level of comfort with every step. You've got to feel it to believe it. Modern Edge Made with at least 20% recycled content, engineered mesh and woven textile combine for a feel that's lightweight and durable. 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. More Details Classic laces