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 traverses. A concentration of technological solutions that evolve the way off road running: this is Mutant!