What do your adidas sneakers hide?

A few days ago we told you about some of the technologies that Nike hides in their sneakers, and showed you how the Air Max Sole and the Lunarlon technology work. Today is adidas‘ turn to be analyzed, and we’ll try to explain how two of the technologies used by the german brand work: Torsion and Boost.


We’re back in the 80’s. At that time, there was an ongoing evolution in technology applied to footwear, and the competition between the big brands was high; for this reason, adidas decided to change for the better and create unique footwear designed especially for running, to try and beat their competitors.

So in 1987 adidas introduced their Torsion technology, with which they intended to lead the market of running sneakers. But, how does the Torsion technology work?

It consists of a bar, called Torsion Bar, located in the middle of the sole. It joins the back and the front of the sneaker contributing to the energy transmission from the back area to the front with each step, making it possible for these two areas of the sneaker to move independently, thus providing the adidas with flexibility and adaptability to all kinds of ground. This technology was added to models such as the adidas ZX 5000 o las adidas ZX 9000.

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For over 25 years, EVA rubber has been (and still is) one of the main materials used in the manufacture of sneaker soles, but the constant innovation by adidas has lead to the creation of a new material that largely surpasses the performance of EVA rubber. Thousands of small thermoplastic, polyurethane balls constitute the material of the adidas Boost technology.

This material was created taking into account the energy conservation law, because each capsule in this material accumulates energy when the foot is leaning on the ground, and free it the moment it is lifted, helping the performance of the steps. In the video below you can see the difference in cushioning between the Boost technology and the EVA rubber.

At foot District we are dying to see if adidas will apply the Boost technology in any re-issues, like Nike did with, for example, the Nike Air Max 90 Lunar or the Nike Huarache Free.

Would you like to try them on?