We appreciate that there are some people who find it hard to stay warm in the cold winter months and with the cost of living putting pressure on some households, we wanted to take a look at some thermal underwear this week. So Sophia Smith has a 7 Day Challenge for us. It's the penultimate day and one more chance for Marks and Spencer to win over our Sophia as she slips on the thermal pointelle leggings to review. Come back tomorrow for the last day of this weeks challenge and see which one is her favourite. Filmed in 4K.

"I don't know if you can see the texture but it's so fluffy, I love it!" Sophia Smith