Military personnel require specialized clothing to operate effectively in low-temperature environments. A layered system of garments, including base layers, insulating layers, and outer shells, provides protection from the elements. For example, a moisture-wicking base layer helps regulate body temperature, while an insulating mid-layer traps warm air. The outermost layer, often a water-resistant and windproof jacket, shields against precipitation and wind chill.
Effective thermal regulation is critical for maintaining combat readiness and preventing cold weather injuries such as hypothermia and frostbite. Historically, armies have adapted their clothing to suit the prevailing climate conditions, with significant advancements in materials and design enhancing protection and comfort. These improvements contribute to operational effectiveness by ensuring soldiers can perform their duties without impairment from extreme cold.