Dynamic trekking model for mid-altitude. Suede and elastic fabric upper, seamless construction for maximum comfort. Vibram sole with an asymmetrical design and grooves in the support and push-off zones that adapt to the ground's morphology and maximize the dynamic effect of the AKU Elica Natural Stride System to enhance biodynamic efficiency. Direct-injected differentiated-density polyurethane midsole to replicate the plantar anatomies of the Elica shape and provide cushioning and support.