Heatgen™ Max Thermal Fleece Leggings

These supersoft, lightweight leggings will keep you cosy on colder days. They're made from fleece with Heatgen™ Max technology which helps to lock in

Shop Marks & Spencer Women's Fashion Thermal Trousers up to 60

Heatgen™ Max Thermal Fleece Leggings, M&S Collection

Made with Heatgen Plus™ thermal technology, these lightweight leggings are great for staying warm on chilly days. Added stretch for a comfortable fit.

Heatgen™ Medium Fleece Thermal Leggings

13 Best Thermal Leggings for Winter Training: Editor's Picks

Heatgen Plus™ Thermal Long Sleeve Top

Heatgen™ Max Thermal Fleece Leggings, M&S Collection

Heatgen Max™ Thermal Fleece Long Sleeve Top

Ladies Thermal Leggings International Society of Precision Agriculture

180 Denier Heatgen™ Footless Tights, M&S Collection

Heatgen™ Thermal Leggings (2-14 Yrs), M&S Collection

Made with Heatgen Plus™ thermal technology, these lightweight leggings are great for staying warm on chilly days. Added stretch for a comfortable fit.

Heatgen™ Medium Fleece Thermal Leggings

Heatgen™ Medium Thermal Brushed Leggings, M&S Collection

Heatgen™ Medium Fleece Thermal Leggings, M&S Collection