Columbia Women's Loveland Shorty Omni-Heat Print Snow Boot 100% Textile/Synthetic Imported Synthetic sole Shaft measures approximately 5.5" from arch Boot opening measures approximately 10.5" around Techlite lightweight midsole for long lasting comfort, superior cushioning, and high energy return. Omni-Grip non-marking traction rubber. Waterproof woven synthetic textile with faux-fur collar and tongue lining. Textile webbing. Omni-Tech waterproof breathable seam-sealed membrane bootie construction. 200g insulation. Rated -25F/-32C. Omni-Heat reflective lining.