Nike Air Tech Challenge 2

Leather: A traditional natural material obtained by processing animal skins, valued in the shoe and haberdashery industry for its inimitable combination of durability, breathability and aesthetics. Thanks to its unique fibrous structure, the leather is able to adapt perfectly to the anatomy of the human body, ensuring high user comfort. It is a "living" material that breathes naturally, absorbs moisture and acquires a characteristic patina over time. Depending on the processing method (smooth leather, suede, nubuck), it offers different degrees of resistance to external influences and different surface textures.

Synthetics: The material of the upper includes a wide range of man-made fibres and laminates that are designed to overcome the limits of natural materials. The main advantages are low weight, high strength and fast drying ability. Modern synthetic materials are often developed with an emphasis on breathability and resistance to external influences such as moisture or mechanical damage. Thanks to their technological variability, they allow the production of specific textures and structures that provide the foot with the necessary support and flexibility while maintaining easy maintenance.

Air Sole: An air cushioning unit from Nike that is enclosed in a flexible and durable housing directly inside the midsole of the shoe. When stepped on, the air is compressed to absorb the impact and then immediately returns to its original shape. The result is a softer impact, better energy return and less stress on the joints. The midsole with Air Sole is lightweight, stable and durable, enhancing both comfort and overall stride dynamics.

Rubber: It is one of the most widely used materials for the production of soles due to its high mechanical resistance and durability. The main advantage of rubber soles is their excellent grip (traction) on different types of surfaces, which minimises the risk of slipping. The material is naturally flexible, waterproof and effectively absorbs shocks during walking. Depending on the compound, the rubber can be either soft for better contact with the ground or hard for maximum abrasion resistance on rough terrain.