Columbia Women's Fire Venture Mid Waterproof hiking Boot 100% Suede/Textile Imported Rubber sole Shaft measures approximately 5.25" from arch Boot opening measures approximately 12" around Techlite lightweight midsole for long lasting comfort, superior cushioning, and high energy return. Omni-Grip non-marking traction rubber. Waterproof suede and textile upper. Metal eyestays and hardware. Omni-Tech waterproof breathable seam-sealed membrane bootie construction.