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

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 Fleece Thermal Leggings, M&S Collection

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Heatgen™ Medium Fleece Thermal Top, 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™ Maximum Thermal Long Johns, M&S Collection

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Heatgen Plus™ Thermal Long Sleeve Top

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Marks & Spencer Women's Heatgen Plus Fleece Thermal Underwear Leggings