Insulated boots can mean the difference between warm, comfortable feet or a very rough day on the trail. Our insulated hiking boots are made with Thinsulate, a unique blend of microfibers that keep your feet warm by blocking out cold air molecules. Measured in grams, a higher volume of Thinsulate means a higher level of insulation. Shop leading hiking brand manufacturers such as Vasque, Merrell and Adidas and find the right insulated hiking boots for warm feet in all weather.