The Alta Via GV Mountaineering Boot features a Gore-Tex insulated comfort membrane and Perwanger leather upper for durability and weather resistance. It includes a heel-locking lateral rubber heel rand, Lite 3 anatomic footbed, Duo Asoflex Ascent lasting board, PU anti-shock insert, Pebax frame, and Vibram Vertical rubber sole. The boot is compatible with automatic crampons.