The First Lite Kiln Long John is a versatile base layer bottom engineered for hunters who require an optimal balance of warmth, breathability, and moisture management during active pursuits. By combining 250g/m Aerowool a strategic blend of Merino wool and 37.5 active particle technology these long johns organize your foundation layering system into a high-performance, climate-controlled layout built for variable-output conditions and changing weather throughout the season.

Key Features

• Active Thermal Regulation: The 250g/m Aerowool fabric provides consistent insulation during stationary periods while actively venting excess heat during high-exertion movement.
• Superior Moisture Management: Integrated 37.5 technology accelerates the evaporation of moisture, keeping you dry and preventing the rapid cooling that occurs with traditional base layers.
• Odor-Resistant Comfort: The high-quality Merino wool blend offers natural, permanent anti-microbial properties, ensuring freshness during long, multi-day backcountry trips.
• Athletic Ergonomic Cut: Tailored for maximum mobility, the design ensures a non-restrictive fit that layers seamlessly under technical pants without adding excessive bulk.
• Durable Foundation: Engineered with high-strength construction to maintain shape and thermal efficiency throughout repeated seasons of heavy use in demanding terrain.