Sealed Insulated Military Boots

摘要

Sealed insulated rubber boots protect U.S. military personnel against cold injuries to the feet in wet- and dry-cold climates. The boots are constructed on a double vapor barrier principle, with an air chamber and insulating material sealed between two impermeable barriers of rubber. The outer boot wall or barrier protects the insulation against environmental water and the inner barrier next to the foot protects the insulation against foot perspiration and water vapor. By keeping the insulation dry, the double barriers eliminate the evaporation of moisture from the foot and sockgear which is a major cause of cold injury. The conception of the principle of the sealed insulated boot during World War II, its design and fabrication for its initial use in the Korean War, and subsequent improvements are discussed. (Author)