Nike Air Zoom Structure 21

The flagship for pronator runners from Nike Running reaches its twenty-first edition with a clear commitment to offer a perfect combination of support and stability. The Nike Air Zoom Structure 21 does not incorporate many new features to those already seen in previous models, and that have given such good performance, what is true is that these new Structure 21 incorporate improved materials, especially in the upper of the shoe, to make the model more resistant and lighter.

One of the great novelties of the Nike Air Zoom Structure 21 lies in a significant weight reduction. In fact, the men's version has managed to drop below the 300 barrier (295 grams), while the women's model is at 255 grams. And the best part is that this weight reduction does not reduce the performance of the midsole and outsole of the Air Zoom Structure 21.

As in its predecessor model, Nike Air Zoom Structure 20, this new version of the Nike Air Zoom Structure 21 relies all its cushioning capacity on the Zoom Air system, capable of offering more reactivity in the forefoot area, which translates into greater elasticity and flexibility in the sole.

It is also true that the Nike Air Zoom Structure 21 incorporates that characteristic dual density that reinforces the stability of the model for that profile of runnenate that needs pronation control. Thus, on one side there is a firmer and denser foam in the lateral area of the arch of the foot, ensuring greater cushioning. While on the other hand, the softer foam is molded to the outer lateral part. The result is greater protection and shock absorption capacity, giving the shoe superior stability.

Updated upper of the Nike Air Zoom Structure 21

The chapter of improvements in the Nike Air Zoom Structure 21 are located in its upper, and these do not come from the use of new technologies, but rather from new materials. For example, the revision and update of the Flymesh fabric, which includes lighter materials in order to provide a stronger and more consistent support. But the one-piece construction also reinforces the breathability aspect.

In the Nike Air Zoom Structure 21 the Dynamic Fit technology also attracts attention. A resource that has given a lot of life to this training shoe with stability control. It combines the Flywire system with an inner elastic band in the bridge, which minimizes the slipping of the foot while running. The Dynamic Fit system offers adaptive stability.

The Flywire cables are also present in a lighter and more resistant format, which allows for a more personalized fit depending on the tension. The higher the tension, the better the support.

In addition, the Nike Air Zoom Structure 21 features a flatter, wider outsole and a panel pattern that ensures greater traction with every foot movement.

All of this means that the Nike Air Zoom Structure 21 remains a reference model for runners who need to correct their stride and enjoy greater control and support, thanks to a shoe capable of offering lightweight, superior stability for smoother, safer transitions and tailored support.