Footwear designed for fast hiking; dynamic and reliable even on the most difficult routes. ROCKET DFS GTX adopts the innovative Vibram tread with Traction Lug technology that improves traction and grip by 25% thanks to the special design. The upper has a crossed rib structure and is protected by a 3D print layer. The exclusive AKU Dual Fit System (DFS) technology, here made in the speed hiking version, allows you to vary the degree of precision of the fit by simply acting on the two different lacing systems. It is built with the AKU Elica Natural Stride System technology to promote biodynamic efficiency.