The shoes have been reported to be quite difficult to get on as you need to completely undo the laces and be quite firm to get your foot in. But once the shoe is on, the knit moulds to your foot, so it feels secure and comfortable.
Nike wanted more cushioning in this performance running shoe and so they added a duo of Zoom Air Pods for that purpose. They can be found in the forefoot where they add extra cushioning designed for impact protection and performance. The pods design allows them to expand and contract in any direction which in turn maximizes their responsiveness.