

Stay comfortably warm in these regular fit thermal long johns, crafted from an insulating cotton blend. They offer a reliable medium level of warmth suitable for chilly days. M&S Heatgen™ technology incorporates an innovative fibre blend that actively works to generate and retain your body heat. We ensure that only responsibly sourced cotton is used in the construction of this essential garment.
This foundational thermal base layer is ideal for managing cold conditions effectively.
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