Charcoal Heat Gen Long Johns

• These long Johns are ideal for layering and offer lightweight cozy warmth.
• Worn close to the body, they allow your skin to breathe and still provide insulation from the cold from a fabric made from natural origin fibers.
• 66% acrylic, 29% viscose/rayon, 5% elastane.
• Elasticized waistband.
• Heat Generation: The fabric is made using specialized yarns that absorb and trap body heat, allowing warmth to be generated once on the body.