This lightweight alpine boot for challenging tours and via ferrata is made from robust Dropstop textile with velours leather reinforcements. The elastic Gore-Tex tongue construction makes the boot easier to put on and take off, and also prevents the formation of creases. The asymmetric lacing takes the anatomy of the foot into consideration and places more pressure on the big toes, resulting in greater precision. The patented Mammut Base Fit technology transfers the power from the lacing area to the sole via free-sliding webbing. Additional features include the water-resistant Gore-Tex Performance Comfort Footwear membrane and the multifunctional Vibram Maton sole with integrated Climbing Zone, as well as the technical wedge made from dual density PU.