Marks and Spencer Heatgen review: We dressed heat-to-toe to test

Shoppers have been raving about Marks and Spencer
Shoppers have been raving about Marks and Spencer's thermal range.

Heatgen Thermals, Lingerie

Heatgen™ Thermal Leggings

Best M&S thermals for men and women

Heatgen™ Medium Thermal Long Sleeve Top, M&S Collection

Heatgen™ Medium Thermal Long Sleeve Top, M&S Collection

I tested the popular M&S thermals and didn't need to turn on

Heatgen™ Thermal Long Sleeve Bodies, M&S Collection

I tested the popular M&S thermals and didn't need to turn on heating for hours' - Mirror Online

Best M&S thermals for men and women

Heatgen™ Medium Thermal Long Sleeve Top, M&S Collection

Heatgen™ Medium Thermal Turtle Neck Top, M&S Collection

Heatgen Thermals, Lingerie

Heatgen™ Medium Thermal Long Sleeve Top, M&S Collection

Best M&S thermals for men and women