Kamik Women's RevelG Snow Boot 100% Leather and synthetic Imported Rubber sole Shaft measures approximately 6.5" from arch Heel measures approximately 1.5" Rated to -25F degrees GORE-TEX waterproof membrane Rustproof speed lacing Fixed 200B Thinsulate and Foam insulation EVA midsole URBAN rubber outsole Kamik offers a sporty, outdoor look with incredible insulation and protection against water and snow.