DAGLBLBL.jpg。Bought these for three season mountaineering objectives in the Pacific Northwest, worn once on a 3-mile hike to try to break them in, just not the right boot for me and they need a good home! About this item: Upper Material: synthetic Waterproofing: GORE-TEX membrane Insulation: synthetic Lining: synthetic Temperature Rating: -4F The Kento Advanced High GTX Boot keeps us stable and sure-footed when we\'re paving our way towards our day\'s objective in the alpine. Its Vibram rubber provides secure traction while the PU wedge midsole gives a rigid platform.