Columbia Women's Minx Moccasin Omni-Heat Winter Boot 100% Suede Leather, Nylon Imported Faux Fur Rubber sole Shaft measures approximately 10" from arch Boot opening measures approximately 14" around Waterproof membrane Top collar bungee closure Waterproof suede leather Omni-heat reflective lining 200g OmniHeat insulation temp rated to -25 degrees F Chic and toasty, this apres ski boot fuses function and form.