These genuine German Army Tanker Overalls are heavy-duty, one-piece thermal liners built to trap heat.Armoured Crew HeritageOriginally developed for the West German Bundeswehr, this Unteranzug, Kälteschutz served as the standard cold-weather undergarment for armoured vehicle crews. Engineered to insulate soldiers inside freezing steel tank hulls, its low-profile, one-piece quilted design packs maximum thermal efficiency without adding restrictive bulk. It is the perfect vintage base layer for winter.Thermal Material EngineeringBuilt with a rugged polyamide outer shell and quilted polyester-blend insulation, this suit retains heat even in damp conditions. The high-closing knitted collar and elastic wrist cuffs form a reliable seal against drafts. To prevent sweat buildup during hard work, the underarms and groin feature integrated ventilation apertures that regulate your body temperature.Cold-Weather Field UtilityDesigned for practical field use, the two-way main zipper allows quick access, while the zipped leg ends slip easily over heavy combat boots. A secure zipped chest pocket keeps small tools safe. Available in genuine Grade 1 lightly used condition or unissued Supergrade, these overalls are ideal for winter bushcraft, cold garage workshops, or active outdoor jobs.Equip yourself with this genuine German military thermal layer and stay warm on your next winter camp or workshop project.