A technical, warm, burly leather mountaineering boot with state of the art technology for climbing in mixed conditions and terrain. Highly insulating lightweight Carbon-Tech Honeycomb insole.  Gore-tex® Insulated Comfort Membrane provides waterproof/breathable insulation. Removable adjustable variable-fit tongue. Ideal for Cascade winter mountaineering, moderate temperature ice climbing, mixed climbing, and summer climbs of peaks like Mt Rainier. The premier benchmark boot in the category.