For optimal performance in medium to long trail runs. The Flextron® PRO drive plate maximizes energy return and provides dynamic forefoot flexibility as well as the right amount of torsional stability, while the 2-layer foam combines lightweight Mammut CORE Ultra with Mammut CORE Plus. Both have different densities for excellent rebound. This sole construction not only enhances comfort and cushioning but also delivers outstanding responsiveness – whether you're covering 10 km or more than 30 km. Additionally, the waterproof and windproof GORE-TEX Invisible Fit membrane ensures protection and comfort in any weather. With the Aenergy Trail Endurance Ultra Low GTX designed for endurance running, you can tackle any trail thanks to its robust, reinforced design.