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
Heatgen Plus™ Thermal Long Sleeve Top
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I compared Asda and Primark thermals to Marks and Spencer and there was a clear winner - Dianne Bourne - Manchester Evening News
13 Best Thermal Leggings for Winter Training: Editor's Picks
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Heatgen™ Max Thermal Fleece Leggings, M&S Collection