GORE-TEX® membrane is completely waterproof but permeable to allow water vapor to escape. Antimicrobial Dry&Cool mesh and foam insole allows for breathability and assists moisture management. Perforated EVA footbed provides added cushioning with antibacterial treatment to reduce odor. TPU and glass fiber shank adds firmness to sole construction and also ensures a natural rolling movement of the foot for even weight distribution. PU midsole with pivot is the balancing section underneath the metatarsus which requires an active rolling movement with every step. This activates a large number of stabilizing muscles throughout the whole body when walking or standing.