Columbia Men's Bugaboot II Slip Snow Boot 100% Waterproof Leather Upper Imported Synthetic sole Shaft measures approximately 7.5" from arch Boot opening measures approximately 11.25" around Omni-Grip non-marking traction rubber Techlite lightweight midsole for long lasting comfort, superior cushioning, and high energy return Waterproof leather upper Injection molded shell Waterproof seam-sealed construction 200g insulation, Rated -25F/-32C