M&S Men's 2 Pack Heatgen Light Thermal Long Johns - XL - Burgundy
When the temperature drops, our ultra-lightweight thermal long johns add a cosy extra layer. Regular fit, with supersoft seams, heatsealed care labels and moisture-wicking fabric for maximum comfort. Our clever Heatgen™ technology uses an innovative fibre blend, helping your body to generate and retain heat so you can stay warm when the weather gets chilly. Fly front fastening.