Experience comfort on a whole new level: the new Transparent Hybrid Foam, made from EVA, TPU and TPE, combines soft cushioning, high responsiveness and long-lasting durability.

The True Motion Apex Rocker supports a smooth, biomechanically natural transition for a harmonic running sensation.

Additional comfort is provided by the new insole made from open-cell memory foam, which adapts individually to the foot.

This makes the U-TECH Aion 4 perfectly suited for long runs – and even ultra marathons.

Half of all runners still injure themselves once a year. Our solution: Our solution: our patented U-TECH™ technology, which reduces the risk of running injuries by up to 50%, especially to the knees and Achilles tendon. This is the result of an independent study with 1,700 participants.

U-TECH™ is based on the anatomical and biological structures of the foot. Whether you are an overpronator, supinator, or neutral runner, your foot lands in the center of the U-shaped midsole with every step, ensuring a safer, more efficient, and more stable run.