The First Lite Furnace Long John is a high-performance base layer bottom engineered for hunters who require superior thermal regulation in extreme cold environments. By combining a heavyweight, 350g/m Merino wool construction with a technical fit, these long johns organize your foundation layering system into a warm, breathable, and odor-resistant layout built for late-season static hunts and high-exertion winter pursuits.

Key Features

• Superior Thermal Regulation: Heavyweight 350g/m Merino wool provides exceptional warmth-to-weight performance, effectively trapping heat even in sub-zero temperatures.
• Natural Moisture Management: The inherent properties of Merino wool actively wick perspiration away from the skin, preventing the buildup of moisture that can lead to rapid heat loss.
• Anti-Microbial Performance: Naturally odor-resistant materials ensure sustained freshness over long, multi-day expeditions, maintaining comfort during extended periods in the field.
• Articulated Athletic Fit: Designed with a tailored, ergonomic cut to ensure full range of motion while layering, preventing restriction during technical movement or long stalks.
• Durable Foundation: The dense knit construction provides long-lasting durability, ensuring these base layers maintain their shape and thermal efficiency throughout repeated seasons of heavy use.