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

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

Heatgen™ Medium Fleece Thermal Top

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

Heatgen™ Medium Thermal Vest, M&S Collection

2pk Thermal Cushioned Knee High Socks, M&S Collection

Heatgen™ Medium Fleece Thermal Top, M&S Collection

We tried Marks and Spencer thermals to help save on heating bills

3pk Heatgen™ Maximum Warmth Thermal Socks

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

Marks and Spencer shoppers love thermal range that has been

Martin Lewis' '£10 trick' to staying warm is helping shoppers save

Marks and Spencer's £22 'cosy' thermal leggings fans say are 'the best' and 'perfect for winter walks' - Birmingham Live

M&S Womens Heatgen Plus Fleece Thermal Leggings 8 Black - Compare Prices & Where To Buy

M&S Womens Heatgen Plus Fleece Thermal Leggings 8 Black - Compare

M&S Girls Thermal Cotton Blend Leggings, 4-5 Years, Black

Heatgen™ Medium Thermal Leggings, M&S Collection, M&S