This product using low elastic bamboo charcoal memory foam, it perfectly fits the body, fills the gap between the waist and the bed, supports the waist, evenly distributes pressure, and reduces the burden on the back. for side sleepers, low impact pillows can well maintain the curve of the waist and waist, so as to protect the spine and muscles from injury. Pillows help to maintain natural posture easily, especially for those who often turn over or cannot sleep, unless lying on one side.The lumbar support pillow can straighten the back muscles, reduce fatigue and massage the back and lumbar muscles. Stimulate your back muscles. In addition, it can also be used as an elevated leg support in the knees, legs and feet to alleviate swelling and promote blood circulation.