White Heat Generation Long Johns

• These long johns are engineered with advanced heat-generating technology, making them your secret weapon against the cold. Worn close to the body, they allow your skin to breathe and still provide insulation from the cold — all this from a fabric made from fibres of natural origin. DETAILS 66% acrylic, 29% viscose FSC, 5% elastane Elasticised waistband 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.