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

#xa; Keen to find out if she could save on her heating by investing in Marks and Spencer thermals, reporter Dianne Bourne put the layers to the test - and she was amazed by the result

I compared Asda and Primark thermals to Marks and Spencer and there was a clear winner - Dianne Bourne - Manchester Evening News

16 M&S 'slimming' thermal top shoppers are 'wearing when the heating is off' - Daily Record

M&S thermals are saving people from turning on the heating this winter

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The First Bilateral Laser Measurement Tool - MAGPIE VH-80, 262ft/80m Dual Laser Distance Meter with Bluetooth App Connection, Laser Measure with 2 Bubble Levels for Fast, Precise Results : Tools

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Heatgen™ Medium Thermal Long Johns, M&S Collection

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

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s £33 'water resistant' stretchy fleece leggings are 'perfect for cold weather' - Daily Record

No Show Heatgen™ Thermal ¾ Sleeve Top, M&S Collection