I usually wear military issue boots. The boots from the 60's and 70's we pretty bad. The newer military boots with Vibram soles, cambrelle lining and sewn in Goretex booties make life much easier on my feet. Add in Thinsulate insulation and they are usually warm and comfortable in the Colorado terrain. The other factor to consider is really good socks. A good wicking synthetic or a wool/synthetic blende is a must! I hike around mountains prospecting for precious metals and most civilian boots are too expensive and usually don't have the ruggedness of the made for the military versions. The popular brands are Belleville, Bates and Danner. Some of the boots are made under contract by these companies and don't have any names on them.