Beat the chill with our M&S Collection women’s navy thermals. Heatgen technology means our styles are warm and lightweight, and we’ve added stretch for a perfect fit. You’ll find long-sleeved T-shirts, roll-necks and ultra-cosy leggings for tackling the great outdoors, as well as socks for keeping toes toasty in boots. Complete your cold-weather outfits and enjoy free delivery over £60