Air Zoom Structure 21 is a stable and nice running shoe, which is made with the newest and best Nike technologies.
Nike Air Zoom Structure 21 is updated with a broader base, so you get a running shoe with more stability. It is more flexible and shock absorptive so you get a more softer run.
The upper on the shoe is made with a light and durable Flymesh material, which is breathable while also being coated so your feet are kept dry and comfortable, even on the rainiest days. This give you a light upper, which fits tight to your foot and gives a natural fit. The inside is made with the OrthoLite-inner sock, which snugs around your foot and gives you a sock like fit. Furthermore, it also has Flywire-threads integrated in the laces which secures you a unique lockdown and a tight fit.
The running shoe is made with an increased and more stable midsole, which still is built around the classic Dynamic Support technology. A new and strong foam along the heel and midfoot helps with reducing pronation. The Dynamic Support technology is made with a lightweight foam that supports your foot and increases the stability - while the weight is kept to a minimum.
Nike Zoom Air shock absorption in the forefoot gives an increased comfort. In the Zoom Air the "pocket" is made with small fibres and this helps with more power and explosiveness on every step that you take. The special flex flumes in the sole gives extra grip to the surface, which makes this shoe ideal for running on raining days.
The inner heel cape gives an increased lockdown effect and stability, while also giving you the tightest fit possible.