Upper

Technologies

Adjustment Systems

Fit is key in running shoes. Good support prevents internal displacement of the foot, prevents chafing and improves both efficiency and stability in each stride.

Brands are incorporating more and more technologies into the upper so that the shoe fits like a glove, regardless of the type of foot.

  • Reinforcements in the heel zone: The heel is a critical area for running stability. For this reason, many of the latest generation shoes incorporate internal or external heel counters that reinforce this area, ensuring that the foot is well supported and preventing it from slipping when landing or taking off.
  • Dynamic laces system: Lacing systems are constantly evolving. Some models use asymmetrical systems, laces with internal straps or even cables (such as Flywire or similar) that encircle the foot to provide a customized fit, especially useful for runners with high or low insteps. This technology allows the shoe to adapt to different foot types without sacrificing comfort.
  • Interior anti-slip elements: Some high-end shoes integrate small rubber or silicone elements inside the heel or tongue to prevent the foot from slipping inside the shoe, which is especially useful on long runs or uneven terrain.

Elements that improve running performance

Although in running there are no strike zones as in football, we do find technologies in the upper that directly influence the runner's efficiency and comfort.

  • Boots with inner strike zone

    • Anatomical design and clear zones: Many shoes move the lacing system to one side or use bootie fit tabs to eliminate pressure points on the instep. This not only improves fit, but also prevents discomfort when running long distances.

  • Boots with toe cap strike zone

    Reinforced zones according to biomechanics: Some models incorporate strategic reinforcements in areas such as the metatarsals or midfoot, optimizing lateral stability or guiding the stride more efficiently. These areas also protect against unwanted impact or twisting during running.

  • Boots with tongue

    • Elastic materials in key zones: The use of materials with localized elasticity allows the shoe to follow the natural movement of the foot without losing support. This translates into a dynamic fit that changes according to the rhythm or phase of the stride (support, transition or toe-off).