mountain running, sky races, and off-road trails on different types of terrain. The ultra sticky sole allows optimum use on slippery terrain and to keep grip on mud or scree thanks to the lugs. The SpyralTongue combines the advantages of quick fitting shoes with a traditional tongue and the protective features of a shoe with an integrated gaiter that avoids contact with stones and mud while running. The lacing system is integrated to the uppers through the FusionGate technology with high density reinforcements: this solution allows to regulate inner volumes and the level of adherence of the foot within the shoe for a more precise race and stability even on traversesFEATURESQuick fit shoe just like traditional shoes, thanks to the spiral opening of the gaiterUltra sticky sole perfect for running on soft and muddy terrain. Extremely versatile thanks to the AT Grip Spike featureslight lifting on left front toe as photographed