The N-Ferno 6436 Lightweight Long Sleeve Base Layer Shirt provides breathable warmth in mild to cold conditions with a 180g polyester-spandex fabric that insulates without bulk. Designed to prevent overheating, it features a stretch fit, long tail for full coverage, raglan sleeves for unrestricted movement, and moisture-wicking, anti-odor technology for all-day comfort. Ideal for construction, transportation, warehousing, refrigerated areas and outdoor activities.

• Lightweight base layer – 180g warmth for multi-climate use
• Breathable performance fit – stretch fabric prevents overheating and won’t restrict movement
• No-bulk layering – smooth exterior and long easy-tuck tail
• All-day freshness – moisture-wicking and anti-odor treatment
• No chafing – flatlock seams and tagless interior
• Full mobility – raglan sleeves with wide underarms
• Machine washable