The Columbia Gunnison Plus LRT Omni-HEAT Winter Boot is a lightweight hiking boot materialized for the urban environment. designed to keep you looking good in the worst conditions. Waterproof full grain leather upper Omni-TECH waterproof, breathable seam-sealed membrane bootie construction. 200g insulation Rated -25F / -32C Techlite lightweight midsole cushioning Omni-GRIP non-marking traction rubber New Shaft Height: 20.5" Circumference: 31" Fit: True to Size Insole: Techlite Outsole: Omni-GRIP Rubber Upper: Full Grain Leather Imported