Marks & Spencer Heatgen™ Medium Thermal Long Sleeve Top (MALE, BERRY, M)

We've made this medium-warmth cotton-blend thermal vest extra soft on skin so you can feel cosy on chilly days. Regular fit style with a stretchy ribbed neck for a better fit. Made with compact-spun fabric for warmth and supersoft seams for maximum comfort. Insulating brushed back cotton ideal for wearing in cold conditions. 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. We only ever use responsibly sourced cotton for our clothes.