Danner - Arctic 600 Side-Zip Bone Brown/Jet Black 200G。Features Full-Grain Leather Upper To ensure its quality, we put our leather through six different tests before making our selection. Our full-grain leathers are the strongest and most durable form of leather. Danner Dry 100% waterproof barrier allows moisture to escape without letting water in, keeping your feet dry and comfortable all day long. 200G PrimaLoft® Insulation PrimaLoft® Gold Insulation offers best-in-class insulation for repeated compression and durability, making it the go-to choice for insulated footwear. Removable OrthoLite Footbed Three layers of varying density are combined for maximum cushioning and support. The entire footbed is made of open-cell polyurethane for better heat dissipation and air circulation. Vibram® SPE Midsole This rubberized EVA midsole maintains the same cushioning properties as traditional EVA, but is more durable and won’t break down as easily. This technology enhances rebound, comfort and support. Vibram® Nisqually Arctic Grip Outsole Utilizing flex lines, a split heel and specially formulated Arctic Grip compound, this outsole provides the most advanced traction in wet and icy conditions. Vibram® Arctic Grip Specifically designed to perform on wet ice, Vibram® Arctic Grip is made entirely of rubber without any metal components or inserts. Specifications Height 7\" Insulation 200G PrimaLoft® Color Black Footbed OrthoLite Shank Nylon Lining Waterproof Liner Danner® Dry Outsole Vibram® Nisqaully Arctic Grip