A technical, warm, lightweight women's mountaineering boot with state-of-the-art technology for climbing on mixed terrain. a Ideal terrain: Winter mountaineering, ice climbing, mixed climbing a Highly insulating Carbon Tech honeycomb insole is lightweight, stiff and low profile a Insulated Comfort Gore-TexA(R) membrane provides waterproof breathability coupled with insulation a Innovative 3D Flex ankle and removable adjustable variable fit tongue LAST: Women's Nepal UPPER: 3.2mm silicone impregnated Idro-Perwanger Roughout leather with high-abrasion resistant fabric / Air-injected rubber rands LINING: Gore-Tex Insulated Comfort Footwear INSOLE: Carbon Tech honeycomb insulation / 4mm EVA MIDSOLE: 2mm Polyurethane graded for crampon attachment SOLE: Re-soleable Vibram with Impact Brake System