The AKU shoe for all those hikers looking for maximum protection and comfort of fit during the many hours of use. The new IMS3-Exoskeleton sole in dual density PU features a level of lightness at the top of the backpacking category, making of Superalp GTX the ideal shoe for hikes such as the High Ways of the Dolomites and treks of several days in complete autonomy with heavy loads on the shoulders. Aku Superalp GTX