The Men's Mont Blanc GV Mountaineering Boot is a super-gaiter boot worthy of technical, high-altitude expeditions. Gore-Tex's Zamba and Insulated Comfort technologies maintain a comfortable climate inside the boot when you're exploring arctic climates, and there's an aluminum netting inside the boot to reflect your body's heat back your way for a surprising boost of heat. Stretchy panels made of Schoeller softshell and neoprene create a tight seal and ensure mountain-specific mobility. Asolo made the internal boot out of durable Cordura and a smooth, warm felt lining. Underfoot, the Mont Blanc GV features three stiff carbon layers that maintain sturdy stiffness for alpine climbing without any of the weight.