Stay warm on cooler days with these M&S Heatgen trainer liners. The lightweight thermal fabric provides warmth without bulk, and added stretch ensures a comfortable fit. Ideal for training or everyday wear, this 3-pack offers versatile colours.
Keep feet warm on cooler days with these Heatgen trainer liner socks. The thermal fabric is lightweight, so it won't feel bulky. Added stretch for comfort. Pack of three pairs includes different colours with contrast toes and heels.
