La Sportiva G2 SM Men's Mountain Climbing Mountaineering Boot Synthetic OUTER BOOT: Water-repellent Cordura / Insulating perforated felt / Low density expanded PE foam / Thermo-reflective aluminium / Water-repellent Lorica with Antiacqua external coating / Dual Boa closure system GAITER: Elastic Cordura cuff / Cordura with laminated and taped water-resistant membrane / Air Injected rubber rand INNER BOOT: 6mm PE + EVA single density foam / Cordura Flex Zone / Dual velcro closure INSOLE: 3mm Honeycomb Tech insulating carbon WEIGHT: 36.11 oz (1024g)