Marks and Spencer shoppers amazed by 'great quality' £16 thermal leggings that 'save on heating bills' - Birmingham Live

The fleecy M&S leggings have been hailed as a 'cold weather staple' for wearing outdoors and for lounging around the house

Go Discover Stormwear™ Walking Leggings, Goodmove

Women's Thermal Leggings

Heatgen™ Medium Fleece Thermal Leggings, M&S Collection

Heatgen™ Medium Fleece Thermal Leggings, M&S Collection

I wore M&S viral £16 thermal leggings and I barely needed the heating on' - Rachel Williams - Daily Record

Shambhala Women's High Rise Full Length Warm Pocket Legging

Heatgen™ Medium Fleece Thermal Leggings, M&S Collection

M&S' £8.75 leggings 'best value ever' say shoppers who can't get enough of 5-star pair

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

Best M&S thermals for men and women

Watson's Women's Cozy Velour Lined Leggings

Mother Baby & Child - August 2017 by Mother, Baby & Child - Issuu

Retail Focus December 2016 by Retail Focus - Issuu

Marks and Spencer 'casual' joggers are 'ideal for travelling' and come in six stylish colours - Birmingham Live

I tried Marks and Spencer's £16 thermals and instantly realised I'd been a fool - Kirsty Bosley - Birmingham Live