These grey thermal leggings from Marks and Spencer's Heatgen range are perfect for keeping you warm during the winter. They come in a size 10 and have a comfortable regular fit. The brushed fleece fabric type ensures maximum warmth and softness, while the compression area on the legs provides extra support.

These long johns are ideal for outdoor winter sports as they feature thermal technology to keep you warm. The leggings are also stylish, with a beautiful blue colour that will match any winter outfit. So, whether you're skiing or just spending time outside in the cold, these M&S leggings will keep you comfortable and cosy all day long.