Nike Air - It works on the principle of air cushions located at the midsole and insole. When došlapu the compressed air cushion and reduce shock at his feet hit the ground. After došlapu the air cushion will return to its original shape. It is more durable than cushioning systems based foam. React - It is a completely new foam, which is composed of a single piece of material. Thanks to the modern processing method, the design of the midsole is designed so that at specific places, which are most loaded during running, the shoe can be more attenuated. Conversely, in other places where much damping is not needed, the shoe is lightweight. You may notice the deeper parts that show more cushioned surfaces, even the shallower ones that create more strength.