Used in the inner boot of the Phantom 6000. Has been formed using all the acquired knowledge of over 50 years of making mountaineering boots. The last has excellent toe shaping for climbing and an improved forefoot shape to give a precise fit with enhanced comfort. The heel has been shaped to provide superb heel hold. The new AG last brings together a superb technical fit for mountaineering and perhaps the highest levels of comfort yet achieved in such high performance mountaineering boots.