Columbia Women's Minx Slip Ii Omni-Heat Snow Boot 100% Waterproof Woven Synthetic Textile And Medial Zipper Soft Faux-Fur Lining Collar Imported Synthetic sole Shaft measures approximately 8" from arch Omni-Grip non-marking traction rubber. Waterproof woven synthetic textile and medial zipper. Soft faux-fur lining collar. Omni-Tech waterproof breathable seam-sealed membrane bootie construction. 200g insulation. Rated -25F/-32C. Omni-Heat reflective lining. Removable contoured PU footbed.