Value Package: The packsge comes with 6 pairs of Tourmaline Slimming Health Sock, in black,white and red. Winter warm socks are suitable for sizes 38 to 44, which is suitable for most people's feet. Non Slip Grip Design: Tourmaline Acupressure Self Heating Shaping Socks have silicone adhesive points at the bottom, which can provide you with better traction, improve your stability and balance when walking, avoid injuries, and help you better control your body movements. Polyester Hand Wash Only Fastening: elastic Classic acupressure socks Soft & Comfortable: The socks are made of high-quality polyester fabric, which is comfortable against the skin, soft and breathable. They are elastic and stretchable to fit the foot curve, making the hot spot close to the sole skin. Wide Application: Winter Warm Socks are suitable for various outdoor sports in winter, such as skiing, mountaineering, fishing, jogging, shoveling snow, hockey, etc. Keep your feet warm in cold weather. Ideal for Winter: This self heating sock can keep you warm and comfortable for a long time, and is very suitable for giving to your relatives and friends as a gift.