Black Heatgen Long Johns

• Our heat generation long johns are specially designed to generate and retain body heat which makes them ideal for layering on chillier days. They stretch to provide a perfect fit and offer a high level of comfort against the skin.DETAILS 66% acrylic, 29% viscose, 5% elastane Elasticised waistband Cuffed hems OUR DIFFERENCE Heat Generation:The fabric is produced using specialised yarns that absorb and trap body heat, allowing it to generate warmth once on the body.