High-tech 100% waterproof & breathable Gore-Tex membrane allows the foot to breathe effectively. Thin membrane that sticks directly to the inner side of the outer fabric or is left free between the outer fabric and the lining. The Gore-Tex membrane has become a reference point for its rainproofness and breathability. Vibram rubber base sole, ideal ankle support, designed to provide anti-slip grip and resistance on the most difficult terrains under the most extreme conditions. Air Active, which Meindl first studied, developed and finally applied to hiking shoes, is the reason why Meindl shoes stand out in comfort and safety, especially in difficult and rocky areas, where each step allows the Meindl insole to fully absorb the shocks from the impacts initially received by the foot and finally by our arch. Air Active technology is a combination of foamed material with intermediate closed cells, air tunnels for complete shock absorption and better balance, a Meindl patent. Variofix extra protection binding around the ankle made with a very thin wire rope, and tightens directly from the laces.