Heatgen™ Medium Thermal 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

I wore M&S viral £16 thermal leggings and I barely needed the

M&S Womens Heatgen™ Medium Thermal All-in-one - 6 - Black, Black

Marks and Spencer Women's Heatgen Plus Fleece Thermal Underwear

This lightweight long-sleeved thermal top is designed to keep you extra warm when the temperature drops. Heatgen Plus™ fabric is brushed on the inside

Heatgen™ Medium Thermal Long Sleeve Top

Buy Women Thermal Tops

M&S Hosiery Thermal Heatgen Tights 100 or 180 Denier - Black, Navy

Equally perfect for layering or lounging, these versatile thermal leggings have your cold-weather comfort covered. Our innovative Heatgen Plus™ fabric

Heatgen™ Medium Thermal Leggings

Add a cosy extra layer with this lightweight thermal top. Long-sleeved style with added stretch for exceptional comfort. Super-soft Heatgen Plus™

Heatgen™ Medium Thermal Long Sleeve Top

Best fleece-lined leggings in 2024 for warmth and comfort

Marks and Spencer Heatgen review: We dressed heat-to-toe to test