Asolo Mont Blanc Gv mountaineering boot is designed for climbing at altitude, cold weather, and vertical ice. Light, warm, and stiff as an alpinist&';s boot should be, this tops all others for all-day comfort. Which is important when you top out but still have a long ways on your feet back to camp. Gore Tex Insulated Comfort keeps feet warm and dry Carbon fiber lasting board with aluminium net enhances insulation and rigidity Waterproof zipper and heat-sealed seams Vibram 1229 Mulaz sole Made in Italy Asolo Men&';s Size Chart U.S. Men&';s 6 6.5 7 7.5