Product Details
The N-Ferno® 6436 long sleeve lightweight base layer shirt is designed for comfortable warmth in mild to cold conditions. Made with lightweight and breathable stretch fabric, it effectively keeps workers warm without overheating during strenuous activities. The shirt features a 180g polyester-spandex performance material that provides warmth without the bulk often associated with heavyweight base layers. Its smooth and stretchable fabric allows for easy layering under sweatshirts and jackets, complemented by a long tail for full coverage. The design sits slightly looser on the skin to enhance breathability and mobility while creating an air gap for additional insulation. Raglan sleeves with wider underarms ensure a full range of motion. With moisture-wicking technology and an anti-odor treatment, this shirt keeps workers comfortably fresh, dry, and warm throughout the day. The flatlock seams and tagless interior eliminate irritation and chafing. Ideal for professionals in construction, transportation, warehousing, and refrigerated areas, it is also suitable for weekend activities such as hunting, climbing, running, cycling, and skating. For a complete set, it can be paired with the N-Ferno® 6481 lightweight base layer pants (sold separately). Additionally, the N-Ferno 6435 midweight base layer shirt and 6480 midweight base layer pants are available for heavier-duty warmth in cold temperatures.








