The Italian extreme mountaineer Simone Moro has brought the experiences of his numerous winter expeditions to various 8000 m peaks to bear in the development of the G2 SM Liner expedition shoe. The product is La Sportivas expedition boots designed to be used for days on end at extremely low temperatures and high altitudes. The G2 SM is made of a water and windproof outer shell. With several insulating layers of polyethylene and aluminum, the high shaft is also perfectly equipped for extreme temperatures. The sealed zipper on the front can be opened fully, allowing the insulated inner shoe to be completely removed. Therefore, the mountaineers feet remain protected in the tent and the sleeping bag. The wide and all-round reinforcement protects the shoe from sharp stones and crampon contact. The sole of the La Sportiva G2 SM Liner expedition shoe is made of a 3 mm thick insulated Carbon Honeycomb insole and a 2 mm thick polyurethane midsole. Together with the Vibram Matterhorn main sole, the La Sportiva expedition shoe is not only 100% crampon-compatible, but also designed, in every regard, for extreme mountaineering and the toughest winter use.